CN103679912A - Coin Detection Method in Pipeline - Google Patents

Abstract

The invention relates to a coin detection method in a pipeline, which comprises a main body and at least one coin collecting pipe, wherein a coin distributor and the coin collecting pipe accommodated below the coin distributor are arranged in a shell of the main body, one or more groups of electrodes of a sensing module are arranged at the periphery of the coin collecting pipe, the electrodes are connected with a detection circuit, when metal coins enter the pipeline of the coin collecting pipe, the capacitance between the electrodes can be changed, the detection circuit is used for detecting whether the metal coins exist at a specific position and are in a low position or a full position state, or the number of the metal coins corresponding to the inside of the coin collecting pipe can be calculated according to the capacitance, and the height detection mechanism has the advantages of simple structure, high reaction speed, operation under high temperature or dust and polluted environment and the like due to the electrodes, thereby achieving the purposes of easy configuration, easy installation, simple operation, convenient operation, and low, The metal coin height detection is simpler and easier and low cost's effect.

Description

Coin Detection Method in Pipeline

technical field

The present invention provides a coin detection method in a pipe, especially a set of electrodes or more than one set of electrodes are arranged around the coin collecting pipe, when the metal coin enters the pipe, the capacitance between the electrodes can be changed, and the The detection circuit detects whether there is a metal coin at a specific position, thereby achieving the effects of easy configuration, simpler detection of the height of the metal coin, and low cost.

Background technique

Today's social civilization and high-tech development have not only accelerated the pace of people's lives, but also tend to demand more convenience and speed for the quality of life. Therefore, in many public places, in order to consider the convenience and timeliness that the public pays attention to, most of them will Setting up automated vending machines, such as vending machines, ticket vending machines, or currency exchange machines, can save a lot of personnel and employment costs. As more and more types of goods are sold, more additional functions are required.

Furthermore, generally, automatic vending machines and game machines on the market use coin receiving devices to allow users to insert coins for operation, so as to achieve the purpose of unmanned operation and self-checkout; however, with the automatic vending machines The types of commodities that can be traded and sold are increased, and the unit prices are not the same, or in response to the coin receiving function of the game machine, the coin receiving device inside the machine will be equipped with an identification module to identify the currency value and authenticity of the coin. Whether it is a coin made by the country or a token made by an amusement park, there are also differences in the size of coins of different currency values. Therefore, after the coin receiving device has identified the currency value and authenticity of the coin, it must use the coin dispenser. To divert the coins of different denominations into the corresponding coin collection tubes. Since there are many coins stored in the coin collection tubes, a coin height detection mechanism is needed so that when the coins in the coin collection tubes are close to full, the coin dispenser will stop. Coins are fed into the coin collection tube, and when the coins in the coin collection tube are close to the low level, the coin output device at the bottom of the coin collection tube will no longer output coins to ensure the normal operation of the machine.

However, most of the current coin height detection mechanisms use non-contact displacement sensors as sensing modules for metal coins, and all non-contact displacement sensors can be mainly divided into acoustic sensors, electromagnetic sensors, sensors, optical sensors, etc., wherein the sonic sensor uses ultrasonic waves to absorb ultrasonic energy to cause attenuation when the coin passes through, and can be calculated according to the change of attenuation intensity through the controller It is located in the location, but the size of the sonic sensor is large and the cost is quite high, and because the strength of the reflected signal of the sonic sensor is inversely proportional to the distance from the coin, if it is applied to a long coin collecting tube, It will be limited by size, which will cause problems such as scattering attenuation, insufficient excitation energy, and difficult signal identification; while the electromagnetic sensor uses electromagnetic induction, when the coin passes through its sensing coil, its magnetic flux can be changed. The eddy current is induced, and the position can be calculated by the controller according to the size of the eddy current, but this kind of electromagnetic sensor is more suitable for sensing in a short distance. The higher the excitation frequency of the measuring coil, the more complex the subsequent signal processing will be, resulting in expensive problems.

In addition, the optical sensor uses the way of receiving and blocking the light source to collect the light through the reflective strip and irradiate it on the coin collection tube. When the coin passes through, the light from the reflective strip can be affected by the shading effect to produce shadows, and the light will be generated according to the controller. The detected shadow changes can accurately calculate the location. Because the optical sensor has the advantages of being free from electronic noise interference and extremely low signal attenuation, it will not change greatly with the size of the coin collection tube. The only As the size of the coin collection tube becomes larger, only the material of the reflective strip is used, and because the cost of the reflective strip is low, the optical sensor has a great advantage in coin detection, but it is still susceptible to interference from other light sources and In a dusty and polluted environment, there will be disadvantages such as a high recognition error rate. Looking at the above shortcomings, if the overall structure of the sensing module, cost, and the simplicity of coin height detection can be designed to improve practical applications. The effect is the direction that those engaged in this industry want to research and improve.

Therefore, in view of the deficiencies and deficiencies in the use of existing sensing modules, the inventors collected relevant information, evaluated and considered in many ways, and used years of experience in research and development in this industry to continuously try and modify, and then designed this sensor. The invention patent of the coin detection method in the pipeline was born.

Contents of the invention

The main purpose of the present invention is to provide a coin detection method in a pipeline, in which a coin dispenser and at least one coin collection tube are arranged inside the shell of the main body, and a sensing module is arranged around the coin collection tube. A group or more than one group of electrodes, and the electrodes are connected to the detection circuit, when the metal coin enters the pipe of the coin collection tube, the capacitance between the electrodes can be changed, and the specific position can be detected by the detection circuit Whether there is a metal coin and it is in a low or full state, or the number of metal coins in the coin collection tube can be calculated according to the capacitance. It has the advantages of operating in dusty and polluted environments, and then achieves the effects of easy configuration, easier detection of metal coin height, and low cost.

The secondary purpose of the present invention is to provide a coin detection method in the pipeline, the first group of electrodes of the sensing module is arranged around the coin collection tube close to the lower position of the pipeline, and the surrounding of the coin collection tube is close to the full position above the pipeline There is a second set of electrodes. If the detection circuit detects that the capacitance between the first set of electrodes increases, it can be regarded as a metal coin between the first set of electrodes and is in a low state. If the detection circuit detects the second set of electrodes When the capacitance between the electrodes increases, it can be regarded as a full state with metal coins between the second group of electrodes. This height detection mechanism can detect whether the metal coins in the coin collection tube are in a low or full state.

Another object of the present invention is to provide a coin detection method in a pipeline, where a sensing module is arranged around the coin collection tube, and one or more groups of electrodes extending side by side along the length of the pipeline form a capacitor. When the coin enters the pipe of the coin collection tube, because the interior of the coin collection tube is pre-stored with a certain number of metal coins, the relative number of metal coins inside the coin collection tube can be calculated by the detection circuit according to the capacitance, and The size of the electrode covers the thickness of multiple metal coins, and the area of the electrode can be increased according to the actual situation, so that the capacitance is greatly increased to improve the detection sensitivity of the detection circuit and be more reliable.

In order to achieve the above object, the present invention provides a coin detection method in a pipeline, which includes a main body and at least one coin collecting tube, wherein a coin dispenser is arranged inside the shell of the main body, and is accommodated under the coin dispenser There is a coin collection tube with a pipe, and the first set of electrodes with a sensing module is arranged around the coin collection tube at a low position close to the bottom of the tube, and a second set of electrodes is provided around the coin collection tube close to the full position above the tube, and the The electrodes are connected to the detection circuit. When the metal coin enters the pipe of the coin collection tube and is located between the electrodes, the capacitance between the electrodes can be changed, so that the detection circuit can measure the capacitance between the electrodes. When the circuit detects that the capacitance between the first group of electrodes increases, it can be regarded as a metal coin between the first group of electrodes and is in a low state. If the detection circuit detects that the capacitance between the second group of electrodes increases, then It can be regarded as a full state with a metal coin between the electrodes of the second set.

Wherein, the capacitive coupling is formed between the electrodes of the sensing module and the metal coin to cause the capacitance between the electrodes to change, so that the detection circuit can detect the capacitance between the electrodes.

Wherein, the electrode size of the sensing module is larger than, equal to or smaller than the thickness of the metal coin.

In order to achieve the above object, the present invention also provides a coin detection method in a pipeline, which includes a main body and at least one coin collection tube, wherein a coin dispenser is arranged inside the casing of the main body, and a coin dispenser is located below the coin dispenser. A coin collection pipe with a pipe is accommodated, and a sensing module is arranged around the coin collection pipe. One or more groups of electrodes extending side by side along the length of the pipe form a capacitance, and the electrodes are connected to the detection circuit. When the metal coin enters the pipe of the coin collection tube, the capacitance between the electrodes can be changed, so that the detection circuit can measure the capacitance between the electrodes, and a specific number of metal coins are stored in the pipe of the coin collection tube in advance , just can calculate the relative metal coin quantity inside the coin collection tube according to the electric capacity size through the detecting circuit.

Wherein, the capacitive coupling is formed between the electrodes of the sensing module and the metal coin to cause the capacitance between the electrodes to change, so that the detection circuit can detect the capacitance between the electrodes.

Wherein, the electrode size of the sensing module covers the thickness of multiple metal coins.

The invention has the advantages of simple structure, fast response speed, and can be operated under high temperature or dusty and polluted environments, and further achieves the effects of easy configuration, easier metal coin height detection and low cost.

Description of drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a three-dimensional exploded view of the present invention.

FIG. 3 is a block diagram of a sensing module of the present invention.

4 is a schematic cross-sectional view of the sensing module of the present invention detecting the coin position in the pipe of the coin collection tube.

5 is another schematic cross-sectional view of the sensing module of the present invention detecting the coin position in the pipe of the coin collection tube.

6 is a schematic cross-sectional view of the sensing module detecting the number of coins in the pipe of the coin collection tube according to a preferred embodiment of the present invention.

7 is another schematic cross-sectional view of the sensing module detecting the number of coins in the pipe of the coin collection tube according to a preferred embodiment of the present invention.

Description of reference signs: 1-main body; 10-accommodating space; 11-housing; 12-coin dispenser; 122-cent module; 13-sensing module; 131-electrode; 120-coin inlet; 121-identification module; 14-coin output device; 2-coin collecting tube; 20-pipeline; 3-metal coin.

Detailed ways

In order to achieve the above-mentioned purpose and effect, the technical means and the structure thereof adopted in the present invention, the features and functions of the preferred embodiments of the present invention are described in detail as follows by drawing, so as to fully understand.

Please refer to Figures 1 to 5, which are the three-dimensional appearance view, three-dimensional exploded view, block diagram of the sensing module, the cross-sectional schematic diagram of the sensing module detecting the position of coins in the pipe of the coin collection tube, and another schematic cross-sectional view of the present invention. , it can be clearly seen from the figure that the present invention includes a main body 1 and at least one coin collection tube 2, wherein:

The main body 1 includes a casing 11, a coin dispenser 12, a sensing module 13 and a coin output device 14, and a coin dispenser 12 is provided at the top of the casing 11, and a coin dispenser 12 is formed below the coin dispenser 12. The accommodating space 10 for accommodating the coin collection tube 2, and the coin dispenser 12 has an identification module 121 that can identify the value and authenticity of the metal coins 3 and can guide the metal coins 3 to be shunted and stored in the corresponding coin collection tube 2 The coin-dividing module 122 inside, and a coin inlet 120 for inserting metal coins 3 is formed at the top of the recognition module 121 .

However, the sensing module 13 has one or more than one set of electrodes 131 arranged around the coin collecting tube 2, and is connected with a detection electrode 131 arranged at the bottom of the coin dispenser 12 by using a line or wire (not shown in the figure). The circuit 132 is only a preferred implementation, but in actual application, the detection circuit 132 can also be arranged inside the coin dispenser 12 or at any other appropriate position of the casing 11, so as to detect all the coins in the coin collecting tube 2 At least one metal coin 3 accommodated is used to detect changes in capacitance, and another coin-out device 14 is arranged below the accommodation space 10 of the casing 11, so that the coin collecting tube 2 can be installed on the top of the coin-out device 14, and The metal coin 3 in the coin collection tube 2 is pushed out by the coin output device 14 to perform exchange or change function.

The coin collection pipe 2 is a cylinder, and a hollow pipe 20 is formed inside the coin collection pipe 2, and at least one metal coin 3 is accommodated inside the pipe 20 of the coin collection pipe 2, and each coin collection pipe 2 tube The diameter is made corresponding to the diameter of metal coins 3 of different currency values, and the metal coins 3 of different currency values can be accommodated through a plurality of coin collection tubes 2 .

From the above, the shell 11 of the preferred implementation body 1 of the present invention is provided with a coin dispenser 12, and at least one coin collection tube 2 is accommodated below the coin dispenser 12, and the surrounding area of the coin collection tube 2 is close to the bottom of the pipe 20. The first group of electrodes 131 of the sensing module 13 is arranged at the low position, and the second group of electrodes 131 is arranged at the full position near the top of the pipe 20 around the coin collection pipe 2, and the electrodes 132 are connected to the detection circuit 132, Furthermore, inside the pipe 20 of the coin collection pipe 2, a certain number of metal coins 3 are stored, and the size of the electrode 131 can be greater than the thickness of the metal coins 3, which is only a preferred implementation state, and does not limit the present invention. In the scope of the patent, the size of the electrode 131 can also be equal to or smaller than the thickness of the metal coin 3 .

When the coin dispenser 12 guides the metal coin 3 into the pipe 20 of the coin collection tube 2 and is located between the electrodes 131, a capacitive coupling can be formed between the electrode 131 and the coin 3, causing the capacitance between the electrodes 131 to change, and The detection circuit 132 detects the capacitance between the electrodes 131. Therefore, if the detection circuit 132 detects that the capacitance between the electrodes 131 of the first group increases, it can be considered that there is a metal between the electrodes 131 of the first group. When the coin 3 is in a low position, the coin dispensing device 14 no longer withdraws coins. In the same way, if the detection circuit 132 detects that the capacitance between the electrodes 131 of the second group increases, it can be regarded as the second group of electrodes 131. There are metal coins 3 between the electrodes 131 and are in a full state, and the coin dispenser 12 no longer inserts coins into the coin collection tube 2, so that the height detection mechanism can detect whether the metal coins 3 in the coin collection tube 2 are It is in a low or full position, and because the electrode 131 has the advantages of simple structure, fast response, and can be operated in high temperature or dusty, polluted environments, etc., it is easy to configure, and the detection of the height of the metal coin 3 is simpler and lower in cost. Effect.

Please refer to Figures 6 and 7, which are a schematic cross-sectional view of the number of coins in the coin collecting tube detected by the sensing module of a preferred embodiment of the present invention and another schematic cross-sectional view, which can be clearly seen from the figure, wherein the Around the coin collection pipe 2, a group or more than one group of electrodes 131 extending side by side along the length direction of the pipe 20 are provided with sensing modules 13 to form a capacitor, and the electrodes 132 are connected to the detection circuit 132, and then collected in coins. The inside of the pipeline 20 of the tube 2 is to accommodate a certain number of metal coins 3, and the size of the electrodes 131 is to cover the thickness of a plurality of metal coins 3, and the area of the electrodes 131 can be increased according to the actual situation. The capacity is directly proportional to the area of the electrode 131, and the capacitance can be greatly increased to improve the detection sensitivity of the detection circuit 132 and be more reliable.

When the metal coin 3 enters the pipe 20 of the coin collection tube 2, a capacitive coupling can be formed between the electrodes 131 and the metal coin 3, causing the capacitance between the electrodes 131 to change, so that the detection circuit 132 can measure the capacitance between the electrodes 131. capacitance, and the inside of the pipeline 20 of the coin collection tube 2 is pre-accommodated with a certain number of metal coins 3, the relative value of the inside of the pipeline 20 of the coin collection tube 2 can be calculated by the detection circuit 132 according to the capacitance. Metal coins 3 quantity.

Referring back to Figures 2, 3, 5, and 7, the present invention provides a coin dispenser 12 and a coin collection tube 2 inside the shell 11 of the main body 1, and a sensing module 13 is provided around the coin collection tube 2. Group or more than one group of electrodes 131, and make the electrodes 131 to be connected to the detection circuit 132, when the metal coin 3 enters the pipeline 20 inside the coin collection tube 2, the capacitance between the electrodes 131 can be changed, and use The detection circuit 132 detects whether there is a metal coin 3 at a specific position and is in a low or full state, or can calculate the relative number of metal coins 3 inside the pipe 20 of the coin collection tube 2 according to the capacitance, so as to achieve easy configuration 1. The detection of the height of the metal coin 3 is simpler and more cost-effective.

The above detailed description is just a description of a preferred feasible embodiment of the present invention, but the embodiment is not used to limit the scope of the patent application of the present invention, and all other equivalents accomplished under the technical spirit disclosed in the present invention Changes and modifications should be included in the patent scope covered by the present invention.

Claims (6)

1. A coin detection method in a pipeline, characterized in that it includes a main body and at least one coin collection tube, wherein a coin dispenser is provided inside the shell of the main body, and a coin dispenser is accommodated below the coin dispenser. The coin collection tube of the pipeline, and the first group of electrodes with a sensing module is arranged around the coin collection tube at a low position close to the bottom of the pipeline, and the second group of electrodes is arranged around the coin collection tube close to the full position above the pipeline, and the electrodes are Connected to the detection circuit, when the metal coin enters the pipe of the coin collection tube and is located between the electrodes, the capacitance between the electrodes can be changed, so that the detection circuit can measure the capacitance between the electrodes, if the detection circuit detects When the capacitance increase between the first set of electrodes is detected, it can be regarded as a metal coin between the first set of electrodes and it is in a low state. If the detection circuit detects the increase of the capacitance between the second set of electrodes, it can be seen It is in the full position with a metal coin between the second set of electrodes. 2. The coin detection method in the pipeline according to claim 1, characterized in that, capacitive coupling is formed between the electrodes of the sensing module and the metal coin to cause the capacitance between the electrodes to change, so that the detection circuit detects Measure the capacitance between the electrodes. 3 . The coin detection method in a pipeline according to claim 1 , wherein the electrode size of the sensing module is greater than, equal to or less than the thickness of the metal coin. 4 . 4. A coin detection method in a pipeline, characterized in that it includes a main body and at least one coin collection tube, wherein a coin dispenser is provided inside the shell of the main body, and a coin dispenser is accommodated below the coin dispenser. The coin collection tube of the pipeline, and a sensing module is arranged around the coin collection tube, and one or more groups of electrodes extending side by side along the length of the pipeline form a capacitance, and make the electrodes connect to the detection circuit, when the metal coin enters When it is in the pipe of the coin collection pipe, the capacitance between the electrodes can be changed, so that the detection circuit can measure the capacitance between the electrodes, and the pipe of the coin collection pipe has a specific number of metal coins in advance, and then the Calculate the number of relative metal coins inside the coin collection tube through the detection circuit according to the size of the capacitance. 5. The coin detection method in the pipeline according to claim 4, characterized in that, capacitive coupling is formed between the electrodes of the sensing module and the metal coin to cause the capacitance between the electrodes to change, so that the detection circuit detects Measure the capacitance between the electrodes. 6 . The method for detecting coins in pipelines according to claim 4 , wherein the size of the electrodes of the sensing module covers the thickness of a plurality of metal coins. 7 .

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