CN105943271B - A sampling bed for laboratory - Google Patents

Abstract

The invention relates to a sampling bed for a clinical laboratory, which comprises a hospital bed and an early warning system, wherein the system comprises ultrasonic detection equipment, weight change rate detection equipment and display equipment, and the display equipment outputs corresponding warning contents according to detection results of the ultrasonic detection equipment and the weight change rate detection equipment. By the invention, an accurate early warning mechanism can be provided for the falling bed of the patient.

Description

A sampling bed for laboratory

technical field

The invention relates to the field of medical equipment, in particular to a sampling bed for laboratory.

Background technique

According to the materials, the beds can be divided into ABS beds, all stainless steel beds, semi-stainless steel beds, and all-steel plastic-sprayed beds. Beds can be divided into medical beds and household beds according to their usage. According to the function, the hospital bed can be divided into electric hospital bed and manual hospital bed. Among them, the electric hospital bed can be divided into five-function electric hospital bed and three-function electric hospital bed.

For patients waiting for treatment or receiving treatment in the hospital department, the hospital bed is their main activity place. The hospital management and the patient's family members hope that the patient can lie on the hospital bed to rest or receive treatment safely, so as to ensure that the patient can stay on the hospital bed Go through the treatment period and recovery period normally, waiting for the end of treatment date.

However, if the patient accidentally falls from the hospital bed, the damage to the patient is immeasurable. This is because some patients are prone to secondary injuries caused by falling. For example, some patients suffer from muscle damage. Or the damage of muscles and bones, if they fall under the hospital bed again, it will aggravate their own condition, and it is also possible that some patients fell under the hospital bed during treatment, and when they fell, they still had medical equipment on their bodies, such as breathing masks, etc. If it falls, it is likely that the patient will be in an extremely dangerous state because the medical device will fall off.

Under normal circumstances, patients can safely rest or receive treatment on the hospital bed. On the one hand, there will be uninterrupted medical staff to carry out medical work, or there will be long-term care of the patient's family members. Even at night, special medical staff may be arranged. Nurses are paid to care for patients, which shortens the unattended time of patients. On the other hand, it is also because some patients still have a certain ability to move, and they have self-regulated themselves to reduce the probability of falling from the bed. However, medical staff, patients' family members and even paid nursing staff are artificial caregivers after all, and they still have time to eat and rest, so they cannot provide uninterrupted, 24-hour care for patients. Therefore, patients still have a certain amount of unattended time. At the same time, there are also some patients who are completely incapacitated. For these patients, it is likely that an unintentional turning over caused the fall from the bed.

In order to avoid the occurrence of patients falling from the bed, in the prior art, the hospital management has also taken many positive measures, for example, transforming the bed body of the hospital bed, increasing the height of the guardrail, and setting some border-crossing alarm devices on the bed body of the hospital bed And emergency call equipment to reduce the possibility of patients falling from the bed, and provide the trigger device for the patient to fall from the bed alarm. These modified hospital bed equipment have reduced the occurrence of patients falling from the bed to a certain extent. At the same time, the hospital management has also taken some measures, such as increasing interaction and communication with patients' families, to reduce the time patients are left unattended.

However, the existing bed transformation mechanism of these beds is too simple. Since the interval between patients falling from the bed is very short, the detection accuracy and detection efficiency of the above-mentioned detection and alarm equipment are not high, and the increase of the height of the guardrail and the increase of nursing time can only reduce The probability of the patient falling from the bed, but the event of falling from the bed cannot be avoided. The most important thing is that in the prior art, there is a lack of rapid response measures and rapid response equipment for the patient's falling from the bed, and it is impossible to respond quickly to the patient's falling from the bed. Carry out quick support to patient's health in time, cause the bad consequence that can't avoid patient's fall from bed.

Therefore, there is a need for a new technical solution for preventing falling of the hospital bed, which can accurately and efficiently detect the event of the patient falling from the bed, can quickly give an alarm, and can also use some emergency response equipment to rescue the patient, thereby effectively preventing the patient from being hit. Injury, improve the automation level of the hospital bed.

Contents of the invention

In order to solve the above-mentioned problems, the present invention provides a sampling bed for laboratory. By transforming the existing hospital bed body, weight detection equipment, image detection equipment and radiation detection equipment are introduced into the existing hospital bed body. To accurately judge the event of a patient falling from the bed, some early warning equipment was introduced to give a corresponding alarm. More importantly, targeted emergency rescue equipment was also introduced to effectively support the body of the falling patient.

According to one aspect of the present invention, a sampling bed for laboratory is provided, including a hospital bed and an early warning system. The system includes an ultrasonic detection device, a weight change rate detection device and a display device. The detection result of the detection equipment outputs the corresponding alarm content.

More specifically, the laboratory sampling bed includes: ultrasonic detection equipment, located on one side of the bed board, used to detect whether an object passes through the side of the bed board, and when an object is detected to pass through the bed board, When the side of the object passes by, it sends out a signal of passing the object; the wireless communication device is connected with the Freescale IMX6 processing device, including a wireless receiving sub-device and a wireless sending sub-device, which are used to pass through when receiving a fall trigger signal or a fall warning signal. The wireless communication link sends the fall trigger signal or the fall warning signal to the remote ward service center; the display device is connected with the Freescale IMX6 processing device to display the text information corresponding to the fall trigger signal or the fall warning signal; wireless The charging equipment is connected with the solar detection equipment and the storage battery respectively. When the remaining power of the storage battery is insufficient and the current solar energy intensity is lower than the preset intensity, a connection is established with a nearby wireless charging terminal to start the wireless charging operation. The wireless charging equipment is also connected with the voltage The converter is connected to realize voltage conversion; the weight change rate detection device is located on the lower side of the bed board of the hospital bed, including a weight detector and a timer. The weight detector is used to detect the load weight on the bed board of the hospital bed in real time, and the weight change rate detection device is based on weight The output of the detector and the output of the timer determine the rate of change of the load weight on the bed of the hospital bed. When the rate of change of the load weight is greater than the preset rate of change, a weight change warning signal is issued. When the rate of change of the load weight is less than or equal to the preset rate of change, Send a normal signal of weight change; the image acquisition device is located on one side of the bed board, facing away from the side of the bed and taking pictures in a horizontal shooting direction to obtain high-definition side images; the airspace image enhancement device is connected with the image acquisition device to receive high-definition side images, including direct The gray scale transformation sub-equipment and the histogram correction sub-equipment, the direct gray scale transformation sub-equipment are connected with the image acquisition device, and are used to perform direct gray scale transformation processing on the high-definition side image to obtain the first enhanced image, the histogram correction sub-equipment and the direct The grayscale transformation sub-equipment is connected to receive the first enhanced image, and perform histogram correction processing on the first enhanced image to obtain the second enhanced image, wherein the direct grayscale transformation process adopts a logarithmic function for each high-definition side image One pixel value is operated, and each pixel value after the operation is composed of the first enhanced image. The histogram correction process changes the grayscale layout of the first enhanced image by changing the shape of the histogram to enhance the first enhanced image and obtain the second enhanced image. Enhanced image; Wiener filtering device, connected with the histogram correction sub-device of the spatial image enhancement device, for receiving the second enhanced image, and performing the first filtering process on the second enhanced image to obtain the first filtered image, wherein the first The filtering process is used to minimize the mean square error between the first filtered image and the second enhanced image to remove speckle noise and white noise in the second enhanced image; the improved median filtering device is connected with the Wiener filtering device to obtain the first The filtered image includes a noise detection sub-device, a module selection sub-device and a filter processing sub-device, the noise detection sub-device is connected to the Wiener filtering device, and the gray value of the pixel point of the first filtered image is analyzed to obtain Determine the distribution radius of each noise distribution area, and output the maximum value of the distribution radii of each noise distribution area as the maximum distribution radius, the module selection sub-equipment is connected with the noise detection sub-equipment to receive the maximum distribution radius, and based on the maximum The distribution radius selects the filtering module for performing median filtering, and the filtering processing sub-device is respectively connected with the Wiener filtering device and the module selection sub-device for performing median filtering processing on the first filtering image based on the selected filtering module to obtain the second filtering image, wherein the median filtering process includes performing the following processing on each pixel in the first filtered image as the target pixel: the centroid of the selected filtering module is set at the position of the target pixel in the first filtered image in the first filtered Take out multiple pixels in the image as multiple reference pixels, take the maximum and minimum values of the pixel values of multiple reference pixels as the maximum and minimum values of pixels, and determine the average of the maximum and minimum values of pixels The value is used as the average value of the pixel. For each reference pixel, if its pixel value is less than the average value of the pixel, its pixel value is replaced by 0. If its pixel value is greater than or equal to the average value of the pixel, its pixel value is retained. Finally, more The average value of the pixel values of the reference pixel points is output as the pixel value of the target pixel point; the human body detection device is connected with the improved median filtering device, and the gray value of the pixel point in the second filtered image is within the gray value range of the human body All the pixels of the human body sub-image form, when the total number of pixels occupied by the sub-image of the human body is greater than or equal to the preset number of pixels, a human body signal is sent, otherwise, a human body signal is sent out; the solar detection equipment is located in the building where the ward is located On the outer wall, it is used to detect the current solar intensity in real time; the power supply equipment includes solar power supply devices, batteries, switches and voltage converters. Insufficient and the current solar intensity is higher than or equal to the preset intensity, switch to the solar power supply device to be powered by the solar power supply device, and the voltage converter is connected with the switch to convert the 5V voltage input through the switch to 3.3V voltage, wherein The solar power supply device is located on the outer wall of the building where the ward is located, and the solar power supply device includes solar photovoltaic panels; the carriage drive device is connected with the Freescale IMX6 processing device, and is used to control the support structure and extend out when receiving the trigger signal of falling. The combination of structures realizes the extension and lifting operation of the bracket body; the extension structure is located under the hospital bed and is connected with the bracket driving device, which is used to horizontally extend the bracket body from the position below the hospital bed to the side of the hospital bed, and when the extension After the completion of the extension, the end extension signal is sent; the holding structure is located under the hospital bed, and is connected with the carriage driving device and the extension structure respectively, and is used to lift the main body of the carriage to the preset position when receiving the end extension signal. Lifting height; the main body of the bracket is connected with the protruding structure and the holding structure respectively, and is normally located under the hospital bed, which is used to protect the human body from falling from the hospital bed when it is in the protruding and lifting state; Freescale IMX6 processing equipment, respectively with image Acquisition equipment, bracket drive equipment, weight change rate detection equipment, human body detection equipment and ultrasonic detection equipment are connected. When the weight change warning signal is received, the image acquisition equipment is started, and then the human body signal is received and the object passing signal is received. When a fall trigger signal is sent, a fall warning signal is issued when no human body signal is received and an object passing signal is received, and a fall warning signal is issued when no object passing signal is received but only a human body signal is received; CF storage The card is used to pre-store the preset intensity, the preset number of pixels, the preset change rate and the preset holding height; wherein, the module selection sub-equipment selects the filter module for median filtering based on the maximum distribution radius, including: maximum distribution The larger the radius, the larger the filter module selected for median filtering, the smaller the maximum distribution radius, and the smaller the filter module selected for median filtering; wherein, the filter modules for selection in the module selection sub-equipment include 3×3 , 5×5, 7×7 and 9×9.

More specifically, in the laboratory sampling bed: the wireless communication device is located near the bed.

More specifically, in the laboratory sampling bed: the wireless charging device is located near the hospital bed and is integrated with the wireless communication device on an integrated circuit board.

More specifically, in the laboratory sampling bed: the display device is a liquid crystal display.

More specifically, in the laboratory sampling bed: the timer and the Freescale IMX6 processing device are integrated on an integrated circuit board.

More specifically, in the laboratory sampling bed: alternatively, the timer is replaced by the built-in timing unit of the Freescale IMX6 processing device.

Description of drawings

Embodiments of the present invention will be described below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a structural block diagram of a sampling bed for a laboratory according to an embodiment of the present invention.

Reference signs: 1 Ultrasonic detection equipment; 2 Weight change rate detection equipment; 3 Display equipment

detailed description

The embodiments of the laboratory sampling bed of the present invention will be described in detail below with reference to the accompanying drawings.

Medical devices refer to instruments, equipment, utensils, materials or other items used alone or in combination for the human body, including the required software. The therapeutic effects on the human body surface and inside the body are not obtained through pharmacological, immunological or metabolic means, but medical device products play a certain auxiliary role. During use, it is intended to achieve the following intended purposes: prevention, diagnosis, treatment, monitoring, and mitigation of disease; diagnosis, treatment, monitoring, mitigation, and compensation of injury or disability; research, replacement, and adjustment of anatomical or physiological processes ; Pregnancy Control.

Medical equipment can be divided into 10 categories: ward nursing equipment (beds, carts, oxygen cylinders, gastric lavage machines, needle-free syringes, etc.); surgical equipment (operating beds, lighting equipment, surgical instruments and various tables, racks, stools, cabinets, including microsurgery equipment); radiotherapy equipment (contact therapy machines, superficial therapy machines, deep therapy machines, accelerators, 60 cobalt therapy machines, radium or 137 cesium intracavitary therapy and post-installation device therapy, etc.); Medical treatment equipment-there are three types of treatment methods: internal radiation therapy, sticking therapy and colloid therapy; physical and chemical equipment (generally can be divided into four categories: phototherapy business, electrotherapy equipment, ultrasonic treatment and sulfur therapy equipment); laser equipment-medical laser generator Devices (commonly used are ruby laser, helium-neon laser, carbon dioxide laser, argon ion laser and YAG laser, etc.); dialysis treatment equipment (commonly used artificial kidneys include flat artificial kidney and tubular artificial kidney); body temperature freezing equipment (semiconductor cold knife, gas cold knife and solid cold knife, etc.); first aid equipment (cardiac defibrillation pacing equipment, artificial respirator, ultrasonic nebulizer, etc.); other treatment equipment (hyperbaric oxygen chamber, ophthalmic high-frequency electric chromium devices, electromagnetic magnets, vitreous cutters, adult blood separators, etc.). These all belong to the special treatment equipment for each department, and can be divided into a separate category if necessary.

The bed is the most basic and common medical equipment in the hospital. Most of the patients' medical time and nursing time are spent on the bed. It happened and caused great harm to the patient. In addition to bringing some trauma on the impact, it is also likely to expand the patient's condition and adversely affect the recovery and treatment of the patient.

At present, the hospital management has also actively taken some measures to prevent and avoid patients falling from the bed, such as strengthening the bed body, adding early warning equipment, and reducing unmanned nursing time. However, on the one hand, these measures and equipment are too simple, and detection and early warning The efficiency is not high. On the other hand, there is a lack of emergency rescue equipment to support the patient's body when the patient falls from the bed. Even if the patient's fall from the bed is detected, the consequences of the patient's fall from the bed cannot be avoided. In fact, no help is provided for the patient.

In order to overcome the above deficiencies, the present invention builds a sampling bed for laboratory use, uses the existing hospital bed body, carries out structural transformation and upgrading, and adds various detection equipment and early warning equipment to accurately detect the event of a patient falling from the bed. Recognition, especially critical, has also increased effective emergency response equipment to carry out emergency rescue when the patient falls from the bed, thereby avoiding the accident of falling from the bed and causing harm to the patient.

Fig. 1 is the structural block diagram of the laboratory sampling bed shown according to the embodiment of the present invention, including hospital bed and early warning system, described system includes ultrasonic detection equipment, weight change rate detection equipment and display equipment, and display equipment is based on ultrasonic detection equipment and The detection result of the weight change rate detection device outputs the corresponding alarm content.

Next, the specific structure of the laboratory sampling bed of the present invention will be further described.

The system includes: ultrasonic detection equipment, located on one side of the bed board of the hospital bed, used to detect whether an object passes by the side of the bed board of the hospital bed, and when an object is detected to pass by the side of the bed board of the hospital bed, an object passing signal is sent .

The system includes: a wireless communication device, connected with a Freescale IMX6 processing device, including a wireless receiving sub-device and a wireless sending sub-device, for triggering a fall through a wireless communication link when a fall trigger signal or a fall warning signal is received. The signal or fall warning signal is sent to the remote ward service center.

The system includes: a display device connected with a Freescale IMX6 processing device for displaying text information corresponding to a fall trigger signal or a fall warning signal.

The system includes: a wireless charging device, which is respectively connected to the solar energy detection device and the storage battery. When the remaining power of the storage battery is insufficient and the current solar energy intensity is lower than the preset intensity, a connection is established with a nearby wireless charging terminal to start the wireless charging operation. The wireless charging device is also connected with a voltage converter for voltage conversion.

The system includes: weight change rate detection equipment, located at the lower side of the bed board of the hospital bed, including a weight detector and a timer. The weight detector is used to detect the load weight on the bed board of the hospital bed in real time, and the weight change rate detection device is based on The output of the output and the timer determines the rate of change of the load weight on the bed of the hospital bed. When the rate of change of the load weight is greater than the preset rate of change, a weight change warning signal is issued. When the rate of change of the load weight is less than or equal to the preset rate of change, a weight change is issued. normal signal.

The system includes: an image acquisition device, which is located on one side of the bed board of the hospital bed, and shoots in a horizontal shooting direction with its back to the side of the hospital bed to obtain high-definition side images.

The system includes: airspace image enhancement equipment, connected with image acquisition equipment to receive high-definition side images, including direct grayscale transformation sub-equipment and histogram correction sub-equipment, direct grayscale transformation sub-equipment is connected with image acquisition equipment, for The high-definition side image performs direct grayscale transformation processing to obtain the first enhanced image, and the histogram correction sub-device is connected to the direct grayscale transformation sub-equipment for receiving the first enhanced image, and performing histogram correction processing on the first enhanced image to obtain the first enhanced image. The second enhanced image is obtained, wherein the direct grayscale transformation process uses a logarithmic function to operate on each pixel value of the high-definition side image, and forms the first enhanced image with each pixel value after the operation, and the histogram correction process is performed by changing the histogram The shape of the graph is used to change the grayscale layout of the first enhanced image to enhance the first enhanced image and obtain the second enhanced image.

The system includes: a Wiener filter device, connected to the histogram correction sub-device of the spatial image enhancement device, for receiving the second enhanced image, and performing the first filtering process on the second enhanced image to obtain the first filtered image, wherein The first filtering process is used to minimize the mean square error between the first filtered image and the second enhanced image to remove speckle noise and white noise in the second enhanced image.

The system includes: an improved median filtering device, connected with a Wiener filtering device to obtain a first filtered image, including a noise detection sub-device, a module selection sub-device and a filter processing sub-device, the noise detection sub-device and the Wiener filtering device Connection, by analyzing the gray value of the pixels of the first filtered image to determine the distribution radius of each noise distribution area, and output the maximum value of the distribution radii of each noise distribution area as the maximum distribution radius, the module selector The device is connected with the noise detection sub-device for receiving the maximum distribution radius and selecting a filter module for median filtering based on the maximum distribution radius, and the filter processing sub-device is respectively connected with the Wiener filter device and the module selection sub-device for selecting The filtering module performs a median filtering process on the first filtered image to obtain a second filtered image, wherein the median filtering process includes performing the following processing on each pixel in the first filtered image as a target pixel: taking the target pixel at the second The position in a filtered image is taken as the centroid of the selected filtering module in the first filtered image to take out a plurality of pixel points as a plurality of reference pixel points, and take the maximum and minimum values of the pixel values of the plurality of reference pixel points as Pixel maximum value and pixel minimum value, determine the average value of the pixel maximum value and pixel minimum value as the pixel average value, for each reference pixel point, if its pixel value is less than the pixel average value, then replace its pixel value with 0, if If its pixel value is greater than or equal to the pixel average value, its pixel value is retained, and finally the average value of the pixel values of multiple reference pixel points is output as the pixel value of the target pixel point.

The system includes: a human body detection device connected to an improved median filter device, and all pixels in the second filtered image whose gray value is within the gray value range of the human body form a human body sub-image, when the human body sub-image When the total number of occupied pixels is greater than or equal to the preset number of pixels, a human body presence signal is sent; otherwise, a human body absence signal is sent.

The system includes: solar energy detection equipment, located on the outer wall of the building where the ward is located, for real-time detection of current solar energy intensity; power supply equipment, including solar power supply devices, batteries, switching switches and voltage converters, the switching switches are respectively connected with solar energy detection The equipment, the solar power supply device and the storage battery are connected. When the remaining power of the battery is insufficient and the current solar intensity is higher than or equal to the preset intensity, switch to the solar power supply device to be powered by the solar power supply device, and the voltage converter is connected with the switch to convert the The 5V voltage input through the switch is converted into 3.3V voltage, wherein the solar power supply device is located on the outer wall of the building where the ward is located, and the solar power supply device includes a solar photovoltaic panel.

The system includes: a carriage driving device, which is connected with a Freescale IMX6 processing device, and is used to control the holding structure and the extending structure to jointly realize the extending and holding operation of the main body of the carriage when a fall trigger signal is received.

The system includes: a protruding structure, located at the position below the hospital bed, connected with the bracket driving device, used to horizontally protrude the main body of the bracket from the position below the patient bed to one side of the patient bed, and send out a signal of ending the protruding after the protruding is completed The lifting structure is located under the hospital bed, and is respectively connected with the bracket driving device and the extension structure, and is used to raise the bracket body to a preset lifting height when receiving the end extension signal; the bracket body is respectively It is connected with the protruding structure and the holding structure, and is normally located under the hospital bed, and is used to protect the human body from falling from the hospital bed when it is in the protruding and holding state.

The system includes: Freescale IMX6 processing equipment, respectively connected with image acquisition equipment, bracket drive equipment, weight change rate detection equipment, human body detection equipment and ultrasonic detection equipment, after receiving the weight change warning signal, start the image acquisition equipment , then when a human body signal is received and an object passing signal is received, a fall trigger signal is sent, when no human body signal is received and an object passing signal is received, a fall warning signal is issued, and no object passing signal is received And only receive the human body signal, send out the fall warning signal.

The system includes: a CF memory card used for pre-stored preset intensity, preset pixel number, preset change rate and preset lifting height.

Among them, the module selection sub-device selects the filter module for median filtering based on the maximum distribution radius, including: the larger the maximum distribution radius, the larger the filter module selected for median filtering, the smaller the maximum distribution radius, and the selected median filter The smaller the filter module is.

Wherein, the filter modules for selection in the module selection sub-device include 3×3, 5×5, 7×7 and 9×9.

Optionally, in the platform: the wireless communication device is located near the hospital bed; the wireless charging device is located near the hospital bed and is integrated with the wireless communication device on an integrated circuit board; the display device is a liquid crystal display; the timer and Phase One The Carl IMX6 processing device is integrated on an integrated circuit board; alternatively, the timer is replaced with a timing unit built into the Freescale IMX6 processing device.

In addition, ultrasound is a sound wave with a frequency higher than 20,000 Hz. It has good directionality and strong penetrating ability. It is easy to obtain concentrated sound energy and has a long distance in water. It can be used for distance measurement, speed measurement, cleaning, welding, Gravel, sterilization and disinfection, etc. There are many applications in medicine, military, industry, and agriculture. Ultrasound is named for its lower frequency limit greater than the upper limit of human hearing. Scientists call the number of vibrations per second the frequency of sound, and its unit is Hertz (Hz). The frequency of sound waves that our human ears can hear is 20Hz-20000Hz. Therefore, we call sound waves with a frequency higher than 20,000 Hz "ultrasonic". Ultrasonic frequencies commonly used in medical diagnosis range from 1 MHz to 30 MHz.

The laboratory sampling bed of the present invention is used to solve the technical problem that the existing technology cannot provide emergency rescue for patients who fall from the hospital bed. By adding multiple high-precision detection equipment for comprehensive analysis of the detection results, it is possible to effectively determine whether the patient has In case of falling, the necessary alarm equipment is also added to give an alarm. At the same time, special emergency response equipment is added to provide emergency rescue when the patient falls, thus reflecting the hospital's humanistic rescue spirit.

It can be understood that although the present invention has been disclosed above with preferred embodiments, the above embodiments are not intended to limit the present invention. For any person skilled in the art, without departing from the scope of the technical solution of the present invention, the technical content disclosed above can be used to make many possible changes and modifications to the technical solution of the present invention, or be modified into equivalent changes, etc. effective example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, which do not deviate from the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims (6)

1. a kind of clinical laboratory sampling bed, including sick bed and early warning system, the system includes ultrasonic listening equipment, weight becomes Rate detection device and display device, display device is according to ultrasonic listening equipment and the detection knot of weight rate detection device Fruit exports corresponding alarm content；

Characterized in that, the system also includes：

Ultrasonic listening equipment, positioned at the side of sick bed bed board, for detecting whether that object passes through from the side of sick bed bed board, And when being detected with object and passing through from the side of sick bed bed board, send object and skim over signal；

Wireless Telecom Equipment, it is connected with Freescale IMX6 processing equipments, including the sub- equipment of wireless receiving and wireless transmission are set It is standby, for receive fall trigger signal or fall pre-warning signal when will be fallen trigger signal or pendant by wireless communication link Fall the ward service centre that pre-warning signal is sent to distal end；

Display device, it is connected with Freescale IMX6 processing equipments, for show and fall trigger signal or the pre-warning signal that falls Corresponding text information；

Wireless charging device, it is connected respectively with solar energy detection device and battery, when the dump energy of battery is insufficient and works as When preceding solar energy intensity is less than preset strength, establishes and connected to start wireless charging operation with neighbouring wireless charging terminal, Wireless charging device is also connected with electric pressure converter to realize voltage conversion；

Weight rate detection device, positioned at sick bed bed board downside position, including weight detector and timer, weight detecting Instrument is used to detect the load weight on sick bed bed board, output and meter of the weight rate detection device based on weight detector in real time When device output determine load weight rate of change on sick bed bed board, when load weight rate of change is more than default rate of change, hair Go out weight change pre-warning signal, when load weight rate of change is less than or equal to default rate of change, send weight change normal signal；

Image capture device, positioned at the side of sick bed bed board, shot backwards to ward bed side with horizontal shooting direction to obtain high definition Side image；

Spatial domain picture strengthens equipment, is connected with image capture device to receive high definition side image, including direct greyscale transformation Equipment and the sub- equipment of histogram modification, the direct sub- equipment of greyscale transformation is connected with image capture device, for high definition side view Picture performs direct greyscale transform process to obtain the first enhancing image, the sub- equipment of histogram modification and the sub- equipment of direct greyscale transformation Connection, histogram modification processing is performed to obtain the second enhancing figure for receiving the first enhancing image, and to the first enhancing image Picture, wherein, direct greyscale transform process carries out computing using logarithmic function to each pixel value of high definition side image, will transport Each pixel value composition the first enhancing image after calculation, histogram modification processing change the by changing the shape of histogram The gray scale of one enhancing image is laid out to strengthen the first enhancing image, obtains the second enhancing image；

Wiener filtering equipment, it is connected with the sub- equipment of histogram modification of spatial domain picture enhancing equipment, for receiving the second enhancing figure Picture, and the first filtering process is performed to obtain the first filtering image to the second enhancing image, wherein the first filtering process is used to make The first filtering image and the second enhancing image mean square error minimum to remove speckle noise in the second enhancing image and in vain Noise；

Modified medium filtering equipment, it is connected with Wiener filtering equipment to obtain the first filtering image, including noise measuring is set Standby, module selects sub- equipment and the sub- equipment of filtering process, and the sub- equipment of noise measuring is connected with Wiener filtering equipment, by first The gray value of the pixel of filtering image is analyzed to determine the distribution radius in each noise profile region, and made an uproar each Maximum in the distribution radius of sound distributed areas selects sub- equipment and noise measuring as maximum distribution radius output, module Equipment is connected, and radius is maximally distributed for receiving, and the filtration module of medium filtering, filter are carried out based on maximum distribution radius selection The sub- equipment of ripple processing selects sub- equipment to be connected with Wiener filtering equipment and module respectively, for based on the filtration module of selection to the One filtering image carries out median filter process to obtain the second filtering image, and wherein median filter process is included for the first filtering Each pixel carries out following handle as target pixel points in image：With position of the target pixel points in the first filtering image The centre of form for putting filtration module alternatively takes out multiple pixels as multiple reference image vegetarian refreshments in the first filtering image, takes Maximum and minimum value in the pixel value of multiple reference image vegetarian refreshments is as pixel maximum and pixel minimum, to determine pixel The average value of maximum and pixel minimum is using as pixel average, for each reference image vegetarian refreshments, if its pixel value Less than pixel average, then its pixel value is replaced with 0, if its pixel value is more than or equal to pixel average, retain its pixel Value, finally exported the average value of the pixel value of multiple reference image vegetarian refreshments as the pixel value of target pixel points；

Human body detecting device, it is connected with modified medium filtering equipment, by pixel gray value in the second filtering image in human body In intensity value ranges all pixels point composition human body subgraph, when the pixel occupied by human body subgraph sum be more than etc. When presetted pixel point quantity, send and human body signal be present, otherwise, send no human body signal；

Solar energy detection device, on the exterior wall of building where ward, for detecting current solar energy intensity in real time；

Power supply unit, including solar powered device, battery, switching switch and electric pressure converter, switching switch respectively with too Positive energy detection device, solar powered device connect with battery, when the solar energy that the dump energy of battery is insufficient and current When intensity is optionally greater than preset strength, solar powered device is switched to be powered by solar powered device, electric pressure converter Connected with switching switch, using the 5V voltage conversions by input is switched by switching as 3.3V voltages, wherein solar powered device On the exterior wall of building where ward, solar powered device includes solar energy photovoltaic panel；

Carriage drive equipment, be connected with Freescale IMX6 processing equipments, for receive fall trigger signal when, control support Play structure and stretch out structural union and realize that the stretching of bracket main body holds up operation；

Stretch out structure, positioned at sick bed lower position, be connected with carriage drive equipment, for by bracket main body from sick bed lower position Sick bed side is protruded horizontally up, and sends end after stretching and stretches out signal；

Structure is held up, positioned at sick bed lower position, is connected respectively with carriage drive equipment and stretching structure, for receiving knot When beam stretches out signal, bracket main body is risen into default hold up highly；

Bracket main body, it is connected respectively with stretching out structure and holding up structure, normality is positioned at sick bed lower position, in stretching The human body that fallen when going out to hold up state to sick bed is protected；

Freescale IMX6 processing equipments, respectively with image capture device, carriage drive equipment, weight rate detection device, Human body detecting device connects with ultrasonic detecting equipment, after weight change pre-warning signal is received, starts image capture device, with Human body signal be present and when receiving object and skimming over signal receiving afterwards, send trigger signal of falling, receiving no human body Signal and when receiving object and skimming over signal, sends the pre-warning signal that falls, and do not receive object and skim over signal and only receive To human body signal be present, the pre-warning signal that falls is sent；

Compact Flash, for having prestored preset strength, presetted pixel point quantity, default rate of change and default picking-up height；

Wherein, module, which selects sub- equipment to carry out the filtration module of medium filtering based on maximum distribution radius selection, includes：Maximum point Cloth radius is bigger, and the filtration module of the progress medium filtering of selection is bigger, and maximum distribution radius is smaller, the carry out intermediate value filter of selection The filtration module of ripple is smaller；

Wherein, module selects filtration module selective in sub- equipment to include 3 × 3,5 × 5,7 × 7 and 9 × 9.

2. clinical laboratory as claimed in claim 1 sampling bed, it is characterised in that：

Wireless Telecom Equipment is located at sick bed neighbouring position.

3. clinical laboratory as claimed in claim 1 sampling bed, it is characterised in that：

Wireless charging device is located at sick bed neighbouring position and is integrated in Wireless Telecom Equipment on one piece of surface-mounted integrated circuit.

4. clinical laboratory as claimed in claim 1 sampling bed, it is characterised in that：

Display device is LCDs.

5. clinical laboratory as claimed in claim 1 sampling bed, it is characterised in that also include：

Timer is integrated on one piece of surface-mounted integrated circuit with Freescale IMX6 processing equipments.

6. clinical laboratory's sampling bed as described in claim 1-5 is any, it is characterised in that：

Alternatively, timer is replaced using the timing unit built in Freescale IMX6 processing equipments.