Pneumatic logistics transmission system with blockage point detection function and blockage point detection method

Abstract

The invention provides a pneumatic logistics transmission system with a blockage point detection function and a blockage point detection method. The system comprises a server, a switch, a plurality of area control boards, a plurality of work stations, a plurality of fan modules, a transmission bottle and a path drawing system, the server is connected with the switch, the switch is connected with the area control boards, the work stations are connected through a transmission pipeline, and air outlets of the fan modules are connected with air inlets of the transmission pipeline. The area control panel is connected with the fan module and the work station. The transmission bottle is provided with a motion trail recording module, the module comprises a first motion processing sensor, a second motion processing sensor, a timer, a main controller, a memory and a first wireless communication module, and the path drawing system is wirelessly connected with the motion trail recording module; the system depicts and displays the motion trail, recorded by the reading module, of the conveying bottle before bottle blocking, the time for checking blocking points of the conveying pipeline can be effectively shortened, and the operation and maintenance efficiency of the pneumatic logistics system is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pneumatic tube logistics transmission, and in particular relates to a pneumatic tube logistics transmission system with blocking point detection and a blocking point detection method. Background Art

[0002] The pneumatic tube logistics transmission system is a collection of current communication, optomechanical and electrical integration technologies. It connects each floor and each unit in a building or between buildings through one or more closed PVC pipes. By storing materials in transmission bottles and using the gas flowing in the pipes as power to push the transmission bottles along the pipes, long-distance transportation of various materials can be achieved. This technology has the advantages of fast transportation speed, low environmental pollution, and a wide range of material applications. It is widely used in medical, warehouse storage, commercial buildings and other fields.

[0003] At present, since the pipelines of pneumatic logistics systems are usually very complicated, with many branches and turning bends, the transmission bottle may be blocked somewhere in the pipeline due to various reasons during the transmission process, such as foreign matter in the pipeline, loose cover of the transmission bottle causing friction between the cover and the inner wall of the pipeline, unreasonable transmission speed setting causing the transmission bottle to hit the pipe wall or accumulation of transmission bottles, etc., resulting in pipeline blockage. When the pipeline is blocked, the staff needs to detect the location of the blockage along the pipeline, and then disassemble the corresponding pipeline to remove the blockage. However, due to the long pipeline, complex pipeline, and overhead laying, the labor intensity is high, which makes it extremely difficult to detect the blockage point, and the wrong pipeline is often disassembled. In the prior art, the percussion and listening method and the ultrasonic detection method are usually used to check for pipeline blockages. Among them, the percussion and listening method mainly involves knocking on the pipeline, and the staff determines the location of the blockage based on experience. For the complex pipeline loops of the pneumatic logistics system, the inspection workload is huge, and the method is easily affected by external interference. At the same time, this method can only check for serious pipeline problems, such as large pieces of foreign matter attached to the pipe wall, and there are great limitations. The ultrasonic detection method can only detect large foreign matter, and it is difficult to effectively detect small particles or pipeline blockages at bends.

[0004] Therefore, the present invention proposes a pneumatic tube logistics transmission system with blockage point detection and a blockage point detection method to solve the above technical problems. Summary of the invention

[0005] The purpose of the invention is to overcome the defects of the above-mentioned prior art and propose a pneumatic logistics transmission system with blockage point detection and a blockage point detection method. The system and method can effectively improve the positioning accuracy of pipeline blockage points and reduce the time for troubleshooting transmission pipeline blockages.

[0006] To achieve the above-mentioned purpose, the pneumatic logistics transmission system with blockage detection provided by the present invention includes: a server, a switch, a transmission bottle, several regional control boards, several workstations and several fan modules, each of the workstations is connected through the transmission pipeline, the air outlet of the fan module is connected to the air inlet of the transmission pipeline, the fan module and the workstation are respectively connected to the regional control board, the server is connected to the switch, and the switch is connected to the regional control board through a network port, and a motion trajectory recording module is provided on the transmission bottle, and the motion trajectory recording module includes a first motion processing sensor, a second motion processing sensor, a timer, a main controller, a first wireless communication module and a memory, the first motion processing sensor and the second motion processing sensor are symmetrically arranged on both sides of the bottle body of the transmission bottle, and the first motion processing sensor, the second motion processing sensor, the first wireless communication module, the timer and the memory are respectively connected to the main controller;

[0007] A path depiction system for reading the motion trajectory of the transport bottle comprises a second wireless communication module, a laptop computer and path depiction software, wherein the path depiction software is installed on the laptop computer, the second wireless communication module is connected to the laptop computer via a USB port, and the first wireless communication module is wirelessly connected to the second wireless communication module.

[0008] Preferably, in the above technical solution, the transmission pipeline is composed of a plurality of PVC curved pipes and PVC straight pipes, and a diffuse reflection photoelectric sensor is respectively provided at the head end and the tail end of the PVC straight pipe, and the diffuse reflection photoelectric sensor is connected to the regional control board.

[0009] Preferably, in the above technical solution, it also includes a bottle-blocking recovery pipeline, one end of which is connected to the transmission pipeline through a commutator, and the other end is connected to a recycling station and a fan module, the commutator is connected to the regional control panel, and the diameter of the bottle-blocking recovery pipeline is larger than that of the transmission pipeline.

[0010] Preferably, in the above technical solution, the fan module includes a fan, a reversing valve and a pressure gauge, and the fan, the reversing valve and the pressure gauge are respectively connected to the zone control panel.

[0011] Preferably, in the above technical solution, the fan module further includes a frequency converter, the fan is connected to the output end of the frequency converter, and the input end of the frequency converter is connected to the zone control board.

[0012] Preferably, in the above technical solution, the transport bottle further comprises an RFID chip for storing location data of the transport bottle, and the RFID chip is connected to the main controller.

[0013] Preferably, in the above technical solution, it also includes a pipeline diverter, which is connected to the regional control board, the input end of the pipeline diverter is connected to one of the transmission pipelines, the output end is connected to multiple transmission pipelines, the pipeline diverter is connected to the regional control board, and the pipeline diverter is connected to the regional control board.

[0014] The blocking point detection method provided by the present invention comprises the following steps:

[0015] S1, the main controller collects the linear speed data and the inclination data of the transmission bottle before it is blocked in the transmission pipeline through the first motion processing sensor and the second motion processing sensor, and stores the linear speed data and the inclination data in the memory, the main controller records the transportation time data of the transmission bottle through the timer, and writes the transportation time data into the memory, the main controller obtains the location information by reading the RFID chip and writes it into the memory, the location information includes the spatial coordinates of the starting workstation of the transmission bottle, and the main controller sends the linear speed data, the inclination data, the transportation time data and the spatial coordinates of the starting workstation in the memory to the second wireless communication module for reception through the first wireless communication module;

[0016] S2, the second wireless communication module sends the received linear velocity data, inclination data, transportation time data and spatial coordinates of the starting workstation to the path drawing software on the laptop computer via USB, and the path drawing software calculates the movement path of the transport bottle before the transport pipeline is blocked according to the inclination data, linear velocity data, transportation time data and coordinates of the starting workstation of the transport bottle;

[0017] S3. Number the transmission pipelines and diffuse reflection photoelectric sensors, and determine the blockage point of the transmission bottle according to the movement path and the pipeline drawing of the pneumatic logistics transmission system.

[0018] The calculation formula of the motion path is:

[0019]

[0020] Wherein, L1 and L2 are the motion paths corresponding to the data collected by the first motion processing sensor and the second motion processing sensor, t0 is the time when the transmission bottle starts to move, and t n v is the time when the carrier is blocked and stops running, x1 、v y1 、v z1 are the linear velocities of the transmission bottle in the x, y, and z axes directions collected by the first motion processing sensor, v x2 、v y2 、v z2are the linear velocities of the transport bottle in the x, y, and z axes directions collected by the second motion processing sensor, ∝1, β1, and γ1 are the inclination angles of the transport bottle relative to the x, y, and z axes collected by the first motion processing sensor, and ∝2, β2, and γ2 are the inclination angles of the transport bottle relative to the x, y, and z axes collected by the second motion processing sensor.

[0021] Compared with the existing technology, the present invention has the following beneficial effects:

[0022] 1. The present invention records the motion trajectory of the transport bottle before being blocked by a motion trajectory recording module arranged on the transport bottle. Specifically, the first motion processing sensor and the second motion processing sensor collect the inclination data and linear velocity data of the transport bottle before the transmission pipeline is blocked, and the timer collects the transportation time data of the transport bottle before being blocked. The main controller reads the location information of the transport bottle recorded by the RFID chip and writes the information into the memory for storage. The location information includes the spatial coordinates of the starting workstation of the transport bottle. The main controller writes the inclination data, linear velocity data and time data of the transport bottle into the memory for storage. The main controller transmits the above data to the second wireless communication module of the path drawing system through the first wireless communication module. The second wireless communication module then sends these data to a laptop computer installed with path drawing software through the serial port. The path drawing software calculates and draws the motion path of the transport bottle before the transmission pipeline is blocked by reading the inclination data, linear velocity data, time data and the spatial coordinates of the starting workstation of the transport bottle. The staff quickly locates the blocking point of the transmission pipeline by combining the motion path and the pipeline drawing, and timely maintains the faulty pipeline, thereby reducing the time for troubleshooting the pipeline blocking point and improving the operation and maintenance efficiency of the transmission pipeline.

[0023] 2. The present invention sets diffuse reflection photoelectric sensors at the head and tail ends of the PVC straight pipe of the transmission pipeline. The regional control board detects the position of the transmission bottle through the diffuse reflection photoelectric sensors. On the one hand, it can narrow the inspection scope of the transmission pipeline where the transmission bottle is blocked. On the other hand, the regional control board can obtain the movement speed of the transmission bottle in the transmission pipeline by calculating the time difference between the two diffuse reflection photoelectric sensors and the length of the PVC straight pipe, which provides a basis for the staff to adjust the speed of the fan through the frequency converter and adjust the movement speed of the transmission bottle in the transmission pipeline.

[0024] 3. The present invention sets up a special bottle-blocking recovery pipeline, one end of which is connected to a recycling station and a fan module. The fan module is used to suck the transmission bottle into the bottle-blocking recovery pipeline and to suction and clean the transmission pipeline where the bottle is blocked. The diameter of the bottle-blocking recovery pipeline is larger than the transmission pipeline to ensure that the transmission bottle can be recovered normally. The bottle-blocking recovery pipeline and the transmission pipeline are switched by a reversing device. Compared with the method of using the transmission pipeline to recover the blocked transmission bottle along the original route, the risk of secondary blockage of the transmission bottle in the transmission pipeline loop can be effectively avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the pipeline loop structure of the pneumatic logistics transmission system with blockage point detection of the present invention.

[0026] Figure 2 It is a schematic diagram of the electrical control circuit structure of the pneumatic logistics transmission system with blockage point detection of the present invention.

[0027] Figure 3 It is a circuit structure diagram of a motion trajectory recording module of a pneumatic logistics transmission system with blockage point detection of the present invention.

[0028] Figure 4 The present invention is a schematic diagram of the structure of a bottle-blocking recovery pipeline loop of a pneumatic tube logistics transmission system with blockage point detection.

[0029] Figure 5 The invention discloses a demonstration diagram of a blocked path of a transmission bottle drawn by a path drawing system of a pneumatic logistics transmission system with blockage point detection.

[0030] In the figure: 1-fan module, 2-pipeline diverter, 3-workstation, 4-transmission pipeline, 5-bottle recovery pipeline, 6-recycling station, 7-commutator, 8-server, 9-switch, 10-workstation control board, 11-pressure gauge, 12-reversing valve, 13-frequency converter, 14-area control board, 15-fan, 100-main controller, 101-first motion processing sensor, 102-second motion processing sensor, 103-timer, 104-memory, 105-first wireless communication module. DETAILED DESCRIPTION

[0031] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the invention is not limited by the specific implementation modes.

[0032] refer to Figure 1 and Figure 2The pneumatic logistics transmission system with blockage detection includes several fan modules 1, several transmission pipelines 4, several workstations 3, several regional control boards 14, transmission bottles, servers 8 and switches 9. Each workstation 3 is connected through a transmission pipeline 4. The air outlet of the fan module 1 is connected to the air inlet of the transmission pipeline 4. Each transmission pipeline 4 is split by a pipeline splitter 2. The pipeline splitter 2 is composed of a main transport pipe, a bending pipe for reversing and several branch transport pipes. The pipeline splitter 2 is connected to the regional control board 14, the server 8 is connected to the switch 9, and the switch 9 is connected to The regional control board 14 is connected through the network port, and the regional control board 14 is respectively connected to the fan module 1 and the workstation 3, wherein the workstation 3 is provided with a workstation control board 10, and the regional control board 14 is connected to the workstation control board 10 to realize control, the fan module 1 includes a fan 15, a pressure gauge 11, a reversing valve 12 and a frequency converter 13, the pressure gauge 11, the reversing valve 12 and the frequency converter 13 are respectively connected to the regional control board 14, and the frequency converter 13 is connected to the fan 15, and an RFID chip for storing the location information of the transmission bottle is provided on the transmission bottle, and the location information includes the spatial coordinates of the starting workstation 3 of the transmission bottle.

[0033] The workstation 3 with the need to transport the transport bottle sends a request to the regional control board 14 through the workstation control board 10. The regional control board 14 sends a transport bottle transport command to the starting workstation 3 of the transport bottle according to the data content of the request, and controls the pipeline diverter 2 to arrange the pipeline so that the transmission pipeline 4 between the workstation 3 with the need to transport the transport bottle and the starting workstation 3 of the transport bottle is in a straight-through state. The regional control board 14 switches the air outlet direction of the fan 15 to the blowing position through the reversing valve 12, and the regional control board 14 controls the inverter 13 to drive the fan 15 to the transmission pipeline. 4 blows air to provide power for the transport bottle to move in the transport pipe 4. After the transport bottle arrives at the workstation 3 where the transport bottle is required to be transported, the regional control board 14 controls the fan module 1 to the suction position to recycle the transport bottle to the starting workstation 3. The barometer 11 is installed in the transport pipe 4 near the air outlet of the fan 16 to monitor the air pressure value in the transport pipe 4 in real time. The server 8 realizes information exchange and control of each regional control board 14 through the switch 9. In this embodiment, the reversing valve 12 is a three-position two-way pneumatic reversing solenoid valve.

[0034] refer to Figure 3The transport bottle of the pneumatic tube logistics transmission system with blockage detection proposed by the present invention is provided with a motion trajectory recording module, and the motion trajectory recording module includes a first motion processing sensor 101, a second motion processing sensor 102, a timer 103, a main controller 100, a memory 104 and a first wireless communication module 105. The first motion processing sensor 101 and the second motion processing sensor 102 are respectively connected to the main controller 100, and the first motion processing sensor 101 and the second motion processing sensor 102 are symmetrically arranged on both sides of the bottle body of the transport bottle, and are used to collect angular velocity data and inclination data of the transport bottle in the transmission pipeline 4. The timer 103 and the memory 104 are respectively connected to the main controller 100, and the timer 103 and the memory 104 are respectively connected to the main controller 100. 03 is used to collect time data from the start of transportation of the transmission bottle to the occurrence of bottle obstruction. The main controller 100 writes the angular velocity data and inclination data collected by the first motion processing sensor 101 and the second motion processing sensor 102 and the time data of the timer 103 into the memory 104. The first wireless communication module 105 is connected to the main controller 100. In this embodiment, the first motion processing sensor 101 and the second motion processing sensor 102 are MPU6050 motion processing sensors, the timer 103 is ICM7555 timing chip, the main controller 100 is STC8H8K64U chip, and the memory 104 is AT24C02ERRPOROM chip.

[0035] The main controller 100 is connected to the RFID chip of the carrier bottle. The main controller 100 reads the spatial coordinate information of the carrier bottle starting workstation 3 on the RFID chip and writes the spatial coordinates into the memory 104 .

[0036] The pneumatic logistics transmission system with blockage detection also includes a path depiction system for reading the movement trajectory of the transmission bottle. The path depiction system includes a second wireless communication module, a laptop computer and path depiction software. The path depiction software is installed on the laptop computer. The second wireless communication module is connected to the laptop computer via a USB port. The first wireless communication module is wirelessly connected to the second wireless communication module. In this embodiment, the first wireless communication module and the second wireless communication module are NRF2401 wireless modules.

[0037] Continue to refer Figure 1The transmission pipeline 4 of the pneumatic logistics transmission system with blockage detection is composed of a plurality of PVC elbows and PVC straight pipes. A diffuse reflection photoelectric sensor is respectively provided at the head end and the tail end of the PVC straight pipe. The diffuse reflection photoelectric sensor is connected to the area control board 14. The area control board 14 calculates the transmission speed of the transmission bottle in the transmission pipeline 4 according to the time difference when the transmission bottle passes through the two diffuse reflection photoelectric sensors and the length of the PVC straight pipe, which provides a basis for the staff to adjust the wind speed of the fan 15 through the frequency converter 13 to adjust the movement speed of the transmission bottle in the transmission pipeline 4. At the same time, the position of the transmission bottle in the transmission pipeline 4 is detected, which can narrow the inspection scope of the transmission pipeline where the transmission bottle is blocked.

[0038] refer to Figure 4 The pneumatic logistics transmission system with blockage detection also includes a bottle-blocking recovery pipeline 5 and a recovery station 6. A fan module 1 is provided at one end of the recovery station 6. A pipeline diverter 2 is provided between the recovery station 6 and the bottle-blocking recovery pipeline 5. The bottle-blocking recovery pipeline 5 and the transmission pipeline 4 are connected through a diverter 17. The diameter of the bottle-blocking recovery pipeline 5 is larger than that of the transmission pipeline 4, which can effectively avoid the risk of secondary blockage of the transmission bottle in the transmission pipeline loop. The diverter 7 is composed of a pipeline diverter of a main transport pipeline and two branch pipes. The diverter 7 is connected to the regional control board 14. When the regional control board 14 When the air pressure detected by the pressure gauge 11 is too high, it means that the transmission bottle is blocked in the transmission pipeline 4. The regional control board 14 controls the reversing valve 12 to close the air intake circuit of the transmission pipeline 4, and controls the frequency converter 13 to stop working to stop the fan 15. Then the regional control board 14 controls the reversing device 7 and the pipeline diverter 2 in the circuit of the blocking bottle recovery pipeline 5 to straighten the pipeline, so that the pipelines between the recovery station 6, the blocking bottle recovery pipeline 5 and the reversing device 7 are connected. The regional control board 14 controls the fan module 1 near the recovery station 6 to the suction position to suck the blocked transmission bottle into the recovery station 6.

[0039] Furthermore, the present invention proposes a blocking point detection method according to a pneumatic tube logistics transmission system with blocking point detection, comprising the following steps:

[0040] S1, the main controller 100 collects the linear speed data and the inclination data of the transport bottle before it is blocked in the transport pipe 4 through the first motion processing sensor 101 and the second motion processing sensor 102, and stores the linear speed data and the inclination data in the memory 104, the main controller 100 records the transportation time data of the transport bottle through the timer 103, and writes the transportation time data into the memory 104, the main controller 100 obtains the location information by reading the RFID chip and writes it into the memory 104, the location information includes the spatial coordinates of the starting workstation 3 of the transport bottle, and the main controller 100 sends the linear speed data, the inclination data, the transportation time data and the spatial coordinates of the starting workstation 3 in the memory 104 to the second wireless communication module for reception through the first wireless communication module 105;

[0041] S2, the second wireless communication module sends the received linear velocity data, inclination data, transportation time data and the spatial coordinates of the starting workstation 3 to the path drawing software on the laptop computer through USB, and the path drawing software calculates the movement path of the transport bottle before the transport pipeline 4 is blocked according to the inclination data, linear velocity data, transportation time data and the coordinates of the starting workstation of the transport bottle;

[0042] S3. Number the transmission pipeline 4 and the diffuse reflection photoelectric sensors, and determine the blocking point of the transmission bottle according to the point on the transmission pipeline 4 where the last diffuse reflection photoelectric sensor passed by the transmission bottle before the transmission pipeline 4 is blocked, combined with the movement path and the pipeline drawing of the pneumatic logistics transmission system.

[0043] Specifically, in step S2, the calculation formula of the motion path is:

[0044]

[0045] Wherein, L1 and L2 are the motion paths corresponding to the data collected by the first motion processing sensor 101 and the second motion processing sensor 102, t0 is the time when the transmission bottle starts to move, t n v is the time when the carrier is blocked and stops running, x1 、v y1 、v z1 are the linear velocities of the transport bottle in the x, y, and z axis directions collected by the first motion processing sensor 101, v x2 、v y2 、v z2 are the linear velocities of the transport bottle in the x, y, and z axes directions collected by the second motion processing sensor 102, ∝1, β1, and γ1 are the inclination angles of the transport bottle relative to the x, y, and z axes collected by the first motion processing sensor 101, and ∝2, β2, and γ2 are the inclination angles of the transport bottle relative to the x, y, and z axes collected by the second motion processing sensor 102.

[0046] Specifically, when a bottle blockage occurs in the transmission pipeline 4, the regional control board 14 records the number of the last diffuse reflection photoelectric sensor passed by the transmission bottle and the number of the transmission pipeline 4 where the bottle is located. The laptop computer of the path description system establishes communication with the server 8 through the wireless network to obtain the number of the last diffuse reflection photoelectric sensor passed by the transmission bottle and the number of the transmission pipeline 4 where the bottle is located. The operation and maintenance personnel obtain the approximate range of the bottle blockage point in the transmission pipeline 4 in combination with the pipeline drawing of the pneumatic logistics transmission system. The operation and maintenance personnel arrive at the area where the bottle blockage point occurs. The operation and maintenance personnel control the second wireless communication module to establish communication with the first wireless communication module 105 by operating the path description software. After the communication is established, the path description software is operated to read the movement path instruction of the transmission bottle. The first wireless communication module 105 sends the movement path instruction to the main controller 100. The main controller 100 sends the inclination data, linear speed data, transportation time data and coordinates of the starting work station stored in the memory 104 to the second wireless communication module through the first wireless communication module 105. The second wireless communication module then transmits the path description software on the laptop computer through the USB serial port. The path description software receives the data based on the data. According to these data, the motion paths L1 and L2 are calculated, and the points are drawn one by one in the three-dimensional space coordinates and displayed. The path drawing software communicates with the server 8 through the wireless network to obtain the diffuse reflection photoelectric sensor detection signals at the head end and the tail end of the PVC straight pipe of the transmission pipeline 4 collected by the regional control board 14, and simplifies the motion paths L1 and L2. When the diffuse reflection photoelectric sensors at the head end and the tail end of the PVC straight pipe detect that the transport bottle has passed, the motion path before this section can be omitted, thereby simplifying the motion path and saving the computing resources of the computer system. The staff can quickly locate the blocking point of the transmission pipeline through the motion paths L1 and L2, and maintain the faulty pipeline in time, thereby reducing the time for troubleshooting the pipeline blocking point and improving the operation and maintenance efficiency of the transmission pipeline 4. Furthermore, since the motion paths L1 and L2 are the motion data of the transmission bottle collected by the first motion processing sensor 101 and the second motion processing sensor 102 respectively, the motion paths L1 and L2 can be fitted into a motion path L for display. The motion path L of the transmission bottle before the bottle blocking occurs in the transmission pipeline 4 drawn by the path drawing software is as follows: Figure 5 As shown, the transmission bottle is blocked at point d of the transmission pipeline 4, the coordinates of point d are (15, 22, 31), and the diffuse reflection photoelectric sensor near this section of the transmission pipeline 4 is numbered g52.

[0047] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and illustration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is apparent that many changes and variations are possible in light of the above teachings. The exemplary embodiments are selected and described for the purpose of explaining the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various exemplary embodiments of the present invention and various selections and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A pneumatic logistics transmission system with blockage detection, comprising a server, a switch, several regional control boards, several workstations and several fan modules, each of which is connected through the transmission pipeline, the air outlet of the fan module is connected to the air inlet of the transmission pipeline, the fan module and the workstation are respectively connected to the regional control board, the server is connected to the switch, and the switch is connected to the regional control board through a network port, characterized in that: It also includes a transmission bottle, which is provided with a motion track recording module, and the motion track recording module includes a first motion processing sensor, a second motion processing sensor, a timer, a main controller, a memory and a first wireless communication module, the first motion processing sensor and the second motion processing sensor are symmetrically arranged on both sides of the bottle body of the transmission bottle, and the first motion processing sensor, the second motion processing sensor, the timer, the memory and the first wireless communication module are respectively connected to the main controller; A path depiction system for reading the motion trajectory of the transport bottle comprises a second wireless communication module, a laptop computer and path depiction software, wherein the path depiction software is installed on the laptop computer, the second wireless communication module is connected to the laptop computer via a USB port, and the first wireless communication module is wirelessly connected to the second wireless communication module.

2. The pneumatic tube logistics transmission system with blockage detection according to claim 1, characterized in that: The transmission pipeline is composed of a plurality of PVC curved pipes and PVC straight pipes. A diffuse reflection photoelectric sensor is respectively provided at the head end and the tail end of the PVC straight pipe. The diffuse reflection photoelectric sensor is connected to the regional control board.

3. The pneumatic tube logistics transmission system with blockage detection according to claim 2, characterized in that: It also includes a bottle-blocking recovery pipeline, one end of which is connected to the transmission pipeline through a commutator, and the other end is connected to a recycling station and a fan module. The commutator is connected to the regional control board, and the diameter of the bottle-blocking recovery pipeline is larger than that of the transmission pipeline.

4. The pneumatic tube logistics transmission system with blockage detection according to claim 1, characterized in that: The fan module includes a fan, a reversing valve and a pressure gauge, and the fan, the reversing valve and the pressure gauge are respectively connected to the regional control board.

5. The pneumatic tube logistics transmission system with blockage detection according to claim 4, characterized in that: The fan module also includes a frequency converter, the fan is connected to the output end of the frequency converter, and the input end of the frequency converter is connected to the regional control board.

6. The pneumatic tube logistics transmission system with blockage detection according to claim 1, characterized in that: The transport bottle further includes an RFID chip for storing location information of the transport bottle, and the RFID chip is connected to the main controller.

7. The pneumatic tube logistics transmission system with blockage detection according to claim 1, characterized in that: It also includes a pipeline splitter, the input end of the pipeline splitter is connected to one of the transmission pipelines, the output end is connected to multiple transmission pipelines, and the pipeline splitter is connected to the regional control board.

8. A method for detecting a blocking point, which is implemented by a pneumatic tube logistics transmission system with blocking point detection as claimed in any one of claims 1 to 7, characterized in that: The steps include: S1, the main controller collects the linear speed data and the inclination data of the transmission bottle before it is blocked in the transmission pipeline through the first motion processing sensor and the second motion processing sensor, and stores the linear speed data and the inclination data in the memory, the main controller records the transportation time data of the transmission bottle through the timer, and writes the transportation time data into the memory, the main controller obtains the location information by reading the RFID chip and writes it into the memory, the location information includes the spatial coordinates of the starting workstation of the transmission bottle, and the main controller sends the linear speed data, the inclination data, the transportation time data and the spatial coordinates of the starting workstation in the memory to the second wireless communication module for reception through the first wireless communication module; S2, the second wireless communication module sends the received linear velocity data, inclination data, transportation time data and spatial coordinates of the starting workstation to the path drawing software on the laptop computer via USB, and the path drawing software calculates the movement path of the transport bottle before the transport pipeline is blocked according to the inclination data, linear velocity data, transportation time data and coordinates of the starting workstation of the transport bottle; S3. Number the transmission pipeline and diffuse reflection photoelectric sensors, and determine the blocking point of the transmission bottle according to the transmission pipeline point where the last diffuse reflection photoelectric sensor that the transmission bottle passes before the transmission pipeline is blocked, combined with the movement path and the pipeline drawing of the pneumatic logistics transmission system.

9. The method for detecting a blocking point according to claim 8, characterized in that: In step S2, the calculation formula of the motion path is: Wherein, L1 and L2 are the motion paths corresponding to the data collected by the first motion processing sensor and the second motion processing sensor, t0 is the time when the transmission bottle starts to move, and t n v is the time when the transmission bottle is blocked and stops running, x1 、v y1 、v 21 are the linear velocities of the transmission bottle in the x, y, and z axes directions collected by the first motion processing sensor, v x2 、v y2 、v z2 are the linear velocities of the transport bottle in the x, y, and z axes directions collected by the second motion processing sensor, ∝1, β1, and γ1 are the inclination angles of the transport bottle relative to the x, y, and z axes collected by the first motion processing sensor, and ∝2, β2, and γ2 are the inclination angles of the transport bottle relative to the x, y, and z axes collected by the second motion processing sensor.

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