Simple pipeline type pneumatic workstation based on RFID technology
By introducing a water-blocking device into the pneumatic workstation to absorb condensed water and detect the water absorption, the problem of condensed water dripping affecting the sensor was solved, the normal operation of the sensor was achieved, and circuit short circuit was prevented.
Patent Information
- Application Number
- CN202422661054.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-31
AI Technical Summary
In existing pneumatic workstations, condensed water drips onto sensor elements, affecting sensor sensitivity and even causing circuit short circuits and sensor damage.
A simple pipeline pneumatic workstation based on RFID technology was designed. The water-blocking device included a water-absorbing cotton ring, a droplet detector and a shell. The water-absorbing cotton ring was detachably mounted on the shell to absorb condensed water. The droplet detector was used to detect whether the water-absorbing cotton ring was full and to remind the user to replace it.
It effectively prevents condensed water from dripping onto the sensor element, avoids sensor sensitivity reduction and circuit short circuit, and ensures the normal operation and service life of the sensor.
Smart Images
Figure CN223341876U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of pneumatic logistics, and in particular relates to a simple pipeline type pneumatic workstation based on RFID technology. Background Art
[0002] With the accelerating process of modernization, pneumatic tube transportation technology has been widely used in cargo transportation in hospitals, factories, mines and environmental monitoring centers due to its high transportation efficiency, fast transportation speed, low cost and environmental protection.
[0003] The pneumatic workstation is an important component of the pneumatic logistics transportation system and is responsible for receiving and sending goods. The inventors of the present invention have found in actual work that during the use of the transportation pipeline loop connected to the pneumatic workstation, when the temperature difference between the compressed air in the pipeline and the environment outside the pipeline is large, under the action of heat conduction, the temperature of the inner wall of the pipeline is close to that of the outside world, and the moisture in the compressed air in the pipeline is easily precipitated to form condensed water attached to the inner wall of the pipeline. Then, under the blowing of high-speed compressed air, the condensed water on the inner wall of the pipeline will flow to the transceiver station of the system. The transceiver station of the system is equipped with a variety of sensor elements for identifying transport bottles, such as infrared sensors, card readers, photoelectric switches, etc. When the condensed water from the pipe wall drips onto these sensor elements, it will not only affect the sensitivity of these sensor elements, such as the photoelectric elements of the infrared sensor and the photoelectric switch are blocked by the droplets, causing the sensor to be in a triggered state all the time, but may even cause the circuits of these sensors to short-circuit, especially the card reader device, causing the sensor elements to be burned.
[0004] Therefore, the utility model proposes a simple pipeline pneumatic workstation based on RFID technology to solve the above technical problems. Utility Model Content
[0005] The purpose of this utility model is to provide a simple pipeline pneumatic workstation based on RFID technology to solve the technical problem that condensed water in the existing pneumatic workstation drips onto the sensor elements in the workstation, affecting the sensitivity of the sensor elements and even causing the circuits of these sensors to short-circuit, resulting in the sensors being burned.
[0006] To achieve the above objectives, the present invention provides a simple pipeline pneumatic workstation based on RFID technology, comprising:
[0007] A station pipeline, an active pipeline, a touch screen, a water blocking device and a main controller. The bottom end of the station pipeline is provided with a taking port. The active pipeline can move up and down along the station pipeline and is arranged at the taking port. The upper end of the station pipeline is connected with a pneumatic pipeline. The bottom end of the station pipeline is provided with an RFID card reader, an infrared sensor and a one-way valve. The water blocking device is arranged at the bottom end of the taking port. The water blocking device includes a water-absorbing cotton ring, a droplet detector and a shell. The water-absorbing cotton ring is detachably arranged on the shell. The droplet detector is arranged on the shell and is located at the lower end of the water-absorbing cotton ring. The touch screen, droplet detector, RFID card reader, infrared sensor and one-way valve are respectively connected to the main controller.
[0008] Preferably, in the above technical solution, the droplet detector includes a metal ring and a comparator module, the metal ring is connected to one input end of the comparator module, the other input end of the comparator module is connected to a reference power supply, and the output end of the comparator module is connected to the main controller.
[0009] Preferably, in the above technical solution, the metal ring includes a first conductive metal wire and a second conductive metal wire, the first conductive metal wire is connected to an input end of the comparator module and to the working power supply of the comparator module, and the second conductive metal wire is connected to the negative pole GND of the comparator module.
[0010] Preferably, in the above technical solution, it also includes a temperature and humidity sensor and a temperature sensor, the temperature and humidity sensor and the temperature sensor are respectively connected to the main controller, the temperature and humidity sensor is installed in the movable pipe, and the temperature sensor is installed on the outer wall of the movable pipe.
[0011] Preferably, in the above technical solution, a buffer pad is further included, which is arranged at the bottom of the movable pipe and has a plurality of ventilation holes on its surface.
[0012] Preferably, in the above technical solution, the shell of the water-blocking device is fixedly installed to the outer wall of the station pipe by bolts, and the inner walls of the water-absorbing cotton ring and the metal ring are flush with the inner wall of the station pipe.
[0013] Preferably, in the above technical solution, an alarm device is further included, and the alarm device includes a buzzer and an LED light, and the buzzer and LED light are respectively connected to the main controller.
[0014] Compared with the existing technology, the utility model has the following beneficial effects:
[0015] 1. The utility model absorbs condensed water through a water-blocking device, which is caused by the large temperature difference between the inside and outside of the pipeline and the compressed air condenses on the inner wall of the pipeline and is brought into the station pipeline by the compressed air. The water-blocking device includes a water-absorbing cotton ring, a droplet detector and a shell. The water-absorbing cotton ring is detachably arranged on the shell. The water-absorbing cotton ring is used to absorb condensed water. The droplet detector is used to detect whether the water-absorbing cotton ring has overflowed due to being full of water, so as to remind the staff to replace the water-absorbing cotton ring in time to prevent condensed water from dripping onto the sensor element at the bottom of the station pipeline, affecting the sensitivity of the sensor, and avoiding the sensor circuit being short-circuited and causing the sensor to burn out.
[0016] 2. The utility model collects the temperature and humidity conditions in the station pipeline through a temperature and humidity sensor arranged in the movable pipeline, and collects the temperature of the environment through a temperature sensor arranged on the outer wall of the movable pipeline. The temperature and humidity sensor and the temperature sensor are respectively connected to the main controller. When the temperature and humidity sensor collects the humidity in the station pipeline that is greater than the set threshold value, the main controller controls the buzzer and LED light of the alarm device to give an audible and visual alarm, and controls the display screen to give a text reminder to remind the staff to dry the compressed air blown out by the air compressor to prevent the compressed air from being too heavy with water vapor. When passing through the sensor element in the station pipeline, the water vapor condenses on the surface of the circuit board inside the sensor element, causing a short circuit fault. When the main controller detects that the temperature data collected by the temperature and humidity sensor and the temperature sensor are too different, the main controller controls the touch screen to display a text reminder to remind the staff to pay attention to the water absorption of the absorbent cotton ring to prevent the absorbent cotton ring from absorbing too much water and overflowing.
[0017] 3. The utility model absorbs the impact force when the transport bottle reaches the station pipeline through the buffer pad provided at the lower end of the station pipeline, thereby preventing the goods in the transport bottle from being hit and damaged, thereby improving the safety of the goods during transportation. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of a simple pipeline pneumatic workstation based on RFID technology in the utility model.
[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the station pipeline of the utility model.
[0020] Figure 3 It is a structural schematic diagram of the water blocking device of the utility model.
[0021] Figure 4 It is a structural schematic diagram of the buffer pad of the present utility model.
[0022] Figure 5 It is a structural diagram of the electrical principle of the utility model.
[0023] In the figure: 1 - site pipeline, 2 - movable pipeline, 3 - touch screen, 4 - water blocking device, 5 - buffer pad, 6 - RFID card reader, 7 - infrared sensor, 8 - one-way valve, 9 - temperature and humidity sensor, 10 - temperature sensor, 11 - first conductive metal wire, 12 - second conductive metal wire, 13 - water-absorbing cotton ring, 14 - housing, 100 - main controller, 101 - comparator module, 102 - alarm device, 1021 - buzzer, 1022 - LED light. DETAILED DESCRIPTION
[0024] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the utility model is not limited by the specific implementation.
[0025] refer to Figures 1 to 5 A simple pipeline pneumatic workstation based on RFID technology includes a station pipeline 1, an active pipeline 2, a touch screen 3, a main controller 100, a touch screen 3 and a water blocking device 4. The bottom end of the station pipeline 1 is provided with a taking port, and the active pipeline 2 can move up and down along the station pipeline 1 and is arranged at the taking port of the station pipeline 1. The taking port is opened and closed by moving the active pipeline 2 up and down. The upper end of the station pipeline 2 is connected to a pneumatic pipeline, and the bottom end of the station pipeline 1 is provided with an RFID reader 6, an infrared sensor 7 and a one-way valve 8. The water blocking device 4 is arranged at the bottom end of the taking port of the station pipeline 1. The water blocking device 4 includes a water-absorbing cotton ring 13, a droplet detector and a shell 14. The water-absorbing cotton ring 13 is detachably arranged on the shell 14, and the droplet detector is arranged on the shell 14 and is located below the water-absorbing cotton ring 13. At the end, the water-absorbing cotton ring 13 is used to absorb condensed water dripping along the wall of the station pipeline 1, preventing the condensed water from dripping onto the RFID card reader 6 and the infrared sensor 7 at the bottom end of the station pipeline 1, affecting the sensitivity of the RFID card reader 6 and the infrared sensor 7, and avoiding the circuits of the RFID card reader 6 and the infrared sensor 7 from being short-circuited and burned. Specifically, when the pneumatic workstation receives the transmission bottle from the upper end of the station pipeline 1, the compressed air comes from the upper end of the station pipeline 1, and the water-absorbing cotton ring 13 of the water-blocking device 4 at the upper end of the station pipeline 1 is used to absorb the condensed water from the upper end wall of the station pipeline 1. When the pneumatic workstation sends the transmission bottle, the compressed air comes from the lower end of the station pipeline 1, and the water-absorbing cotton ring 13 of the water-blocking device 4 at the lower end of the station pipeline 1 is used to absorb the condensed water from the lower end wall of the station pipeline 1.
[0026] The RFID reader 6, infrared sensor 7, touch screen 3, one-way valve 8, and drop detector are connected to the main controller 100. The RFID reader 6 is used to read the label of the carrier bottle to obtain information such as the starting station and destination station. The infrared sensor 7 is used to identify the presence of the carrier bottle at the station. The one-way valve 8 is used to form a passage between the pneumatic pipe and the station pipe 1, allowing compressed air to circulate and realize the sending and receiving of the carrier bottle. The touch screen 3 is used to display information and set cargo requirements and the destination station for sending the carrier bottle.
[0027] refer to Figure 2 and Figure 5 The droplet detector includes a metal ring and a comparator module 101. The metal ring is connected to an input end of the comparator module 101. The other input end of the comparator module 101 is connected to a reference power supply. The output end of the comparator module 101 is connected to the main controller 100. The metal ring includes a first conductive metal wire 11 and a second conductive metal wire 12. The first conductive metal wire 11 is connected to an input end of the comparator module 101 and is connected to the working power supply of the comparator module 101. The second conductive metal wire 12 is connected to the negative electrode GND of the comparator module 101. In the specific implementation, the comparator module 101 uses the LM393 comparator module, and the main controller 100 uses the STM32F407 series microcontroller. The working principle of the droplet detector is the same as that of the MH-RD raindrop sensor in the prior art. The first conductive metal wire 11 and the second conductive metal wire 12 are both nickel metals. When condensed water drops to the droplet detector, When the metal ring of the detector is connected, the first conductive metal wire 11 and the second conductive metal wire 12 are turned on, and the overall resistance value of the first conductive metal wire 11 connected to the input end of the comparator module 101 changes. According to the principle of resistance voltage division, the voltage value at the input end of the comparator module 101 connected to the first conductive metal wire 11 will also change accordingly. The comparator module 101 compares the voltage of the input end connected to the first conductive metal wire 11 with the voltage value of the reference power supply, and then outputs a high-level signal or a low-level signal to the main controller 100. After receiving the level change signal of the comparator module 101, the main controller 100 determines whether condensed water drops on the metal ring. In this embodiment, the working power supply voltage of the comparator module 101 is DC 5V, and the reference power supply is DC 2.5V-3.3V. The working power supply of the comparator module 101 can be obtained by dividing the voltage by connecting a 10K adjustable resistor in series.
[0028] Continue to refer Figure 2 and Figure 5The simple pipeline pneumatic workstation based on RFID technology in this embodiment also includes a temperature and humidity sensor 9, a temperature sensor 10 and an alarm device 102. The alarm device 102 includes a buzzer 1021 and an LED light 1023. The buzzer 1021 and the LED light 1023 are respectively connected to the main controller 100. The temperature and humidity sensor 9 and the temperature sensor 10 are respectively connected to the main controller 100. The temperature and humidity sensor 9 is installed on the inner wall of the active pipeline 2 to collect temperature and humidity data in the wall of the station pipeline 1. The temperature sensor 10 is installed on the outer wall of the active pipeline 2 to collect temperature conditions in the environment. When the temperature and humidity sensor 9 detects that the humidity in the station pipeline 1 is greater than the set threshold, the main controller 100 controls the buzzer 1021 and LED light 1023 of the alarm device 102 to make sound and light alarms, and controls the touch screen 3 to make text prompts to remind the staff to dry the compressed air blown out by the air compressor to prevent the compressed air from being too heavy with water vapor. When passing through the sensor element in the station pipeline, the water vapor condenses on the surface of the circuit board inside the sensor element, causing a short circuit fault. When the main controller 100 detects that the temperature data difference between the temperature and humidity sensor 9 and the temperature sensor 10 reaches the set threshold, the main controller 100 controls the touch screen 3 to make text prompts to remind the staff to pay attention to the water absorption of the absorbent cotton ring 13 to prevent the absorbent cotton ring 13 from absorbing too much water and overflowing.
[0029] Continue to refer Figure 2 and Figure 4 The simple pipeline pneumatic workstation based on RFID technology in this embodiment also includes a buffer pad 5, which is arranged at the lower end of the station pipeline 1. The surface of the buffer pad 5 is provided with multiple ventilation holes. The buffer pad 5 absorbs the impact force when the transport bottle reaches the station pipeline 1, preventing the goods in the transport bottle from being hit and damaged, thereby improving the safety of the goods during transportation.
[0030] Furthermore, the shell 14 of the water-blocking device 4 is fixed to the outer wall of the station pipeline 1 by bolts, and the inner walls of the water-absorbing cotton ring 13 and the metal ring are flush with the inner wall of the station pipeline 1.
[0031] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many modifications 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 invention and its practical application, thereby enabling those skilled in the art to make and utilize various exemplary embodiments of the invention, as well as various alternatives and variations. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims
1. A simple pipeline-type pneumatic workstation based on RFID technology, comprising a station pipeline, a movable pipeline, and a touch screen. The bottom end of the station pipeline is provided with a take-out port, the movable pipeline can move up and down along the station pipeline and is located at the take-out port. The upper end of the station pipeline is connected to a pneumatic pipeline, and the bottom end of the station pipeline is provided with an RFID card reader, an infrared sensor, and a one-way valve. The characteristics are: Also includes: A water-blocking device and a main controller, wherein the water-blocking device is arranged at the bottom end of the taking port, and the water-blocking device includes a water-absorbing cotton ring, a droplet detector and a shell. The water-absorbing cotton ring is detachably arranged on the shell, and the droplet detector is arranged on the shell and located at the lower end of the water-absorbing cotton ring. The touch display screen, droplet detector, RFID card reader, infrared sensor and one-way valve are respectively connected to the main controller.
2. The simple pipeline pneumatic workstation based on RFID technology according to claim 1 is characterized in that: The drop detector includes a metal ring and a comparator module. The metal ring is connected to one input end of the comparator module. The other input end of the comparator module is connected to a reference power supply. The output end of the comparator module is connected to the main controller.
3. The simple pipeline pneumatic workstation based on RFID technology according to claim 2 is characterized in that: The metal ring includes a first conductive metal wire and a second conductive metal wire. The first conductive metal wire is connected to an input end of the comparator module and to a working power supply of the comparator module. The second conductive metal wire is connected to a negative electrode GND of the comparator module.
4. The simple pipeline pneumatic workstation based on RFID technology according to claim 1 is characterized in that: It also includes a temperature and humidity sensor and a temperature sensor, which are respectively connected to the main controller. The temperature and humidity sensor is installed in the movable pipe, and the temperature sensor is installed on the outer wall of the movable pipe.
5. The simple pipeline pneumatic workstation based on RFID technology according to claim 1 is characterized in that: It also includes a buffer pad, which is arranged at the lower end of the station pipeline, and a plurality of ventilation holes are arranged on the surface of the buffer pad.
6. The simple pipeline pneumatic workstation based on RFID technology according to claim 3 is characterized in that: The shell of the water-blocking device is fixedly installed to the outer wall of the station pipeline by bolts, and the inner walls of the water-absorbing cotton ring and the metal ring are flush with the inner wall of the station pipeline.
7. The simple pipeline pneumatic workstation based on RFID technology according to claim 1 is characterized in that: It also includes an alarm device, which includes a buzzer and an LED light, and the buzzer and the LED light are respectively connected to the main controller.