Distributed control self-service car washer system for multi-model redundant network communication
By dividing the self-service car wash machine controller into low-voltage control, wireless communication, and high-voltage drive modules, and using multi-network redundant communication, the problems of inconvenient maintenance and network outages in the existing technology are solved, achieving stable and reliable wireless communication and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-03
- Publication Date
- 2026-03-24
AI Technical Summary
The existing self-service car wash machine controller motherboard has an integrated design, which makes maintenance inconvenient and causes frequent 4G module network outages, increasing after-sales costs and affecting user experience.
The controller adopts a distributed control design, dividing it into a low-voltage control module, a wireless communication module, and a high-voltage drive module, each of which is an independent module. It also uses three 4G modules and three NB-IoT modules to bind to the networks of the three major operators to achieve redundant communication across multiple networks.
Simplify the repair process, reduce maintenance costs, ensure stable and reliable wireless communication, and improve user experience.
Smart Images

Figure CN121716655A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of car wash equipment, and specifically relates to a self-service car wash machine system with distributed control based on multi-model redundant network communication. Background Technology
[0002] Self-service car washes are a convenient car wash mode that relies on smart devices to flexibly meet the needs of car owners. They require no human intervention, are open 24 hours a day, and car owners can start the equipment by scanning a QR code using a mobile app. The equipment is equipped with a high-pressure water gun, foam gun, and vacuum cleaner, and supports independent adjustment of water pressure and washing time. The existing self-service car wash machine controller motherboards are all integrated designs, meaning that the low-voltage control circuit, wireless communication circuit, and high-voltage drive circuit are all integrated on one motherboard. If any part of the circuit is damaged, the entire motherboard needs to be replaced. This causes inconvenience for the maintenance of self-service car wash machines and increases after-sales costs. In addition, most self-service car wash machines currently use a single 4G module to connect to the Internet for wireless communication with the server. However, with the expansion of self-service car wash machine sites, 4G module network outages frequently occur, causing the self-service car wash machine to be unable to log in or settle payments normally, which seriously affects the user experience of self-service car wash machines. Summary of the Invention
[0003] In view of the problems mentioned in the background art, the purpose of this invention is to provide a self-service car wash system with distributed control and multiple redundant network communication to solve the problems mentioned in the background art.
[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A self-service car wash system with distributed control and multi-model redundant network communication includes a housing. A front door panel is hinged to the front of the housing via a first hinge. A first mounting plate is fixedly connected to the front end of the front door panel. A tempered glass display is located on the front side of the first mounting plate. Below the tempered glass, the first mounting plate has buttons for car washing, clean water, foam, vacuuming, payment, and a card holder. A handwashing button is located on the right side of the housing. A faucet is located below the handwashing button on the housing. A ventilation window is located below the faucet on the housing. A QR code tempered glass is fixedly connected to the left side of the tempered glass display on the housing. A display screen, a heating controller, a power distribution box, an IC card, a QR code scanner, and a grounding bracket are fixedly connected to the back of the front door panel. The power distribution box includes a power adapter, a leakage current protector, a five-hole socket, an AC contactor, a thermal overload relay, and a third... The enclosure is composed of two hinges, heat dissipation holes, a drive board, and a control communication board. Three 4G modules and three NB-IoT module antennas are located on the other side of the top of the enclosure. A shock absorber is fixedly connected to one side of the interior of the enclosure, and a drive motor is fixedly connected to the top of the shock absorber. A plunger pump is fixedly connected to one side of the drive motor inside the enclosure. A clean water tank is fixedly connected to the upper side of the drive motor inside the enclosure. A heater is fixedly connected to the clean water tank. A linear liquid level sensor, a high / low liquid level sensor, and a third temperature sensor are fixedly connected inside the clean water tank. An automatic water inlet valve is fixedly connected to one side of the vent cap in the clean water tank. The clean water tank has an overflow port. The clean water tank inlet pipe is equipped with a temperature sensor and a normally open solenoid valve. A vacuum cleaner body is fixedly connected to the upper side of the clean water tank inside the enclosure. A foam box is fixedly connected to one side of the vacuum cleaner body inside the enclosure.
[0005] Furthermore, as a preferred technical solution, a panel lock is provided on the left side of the box, and a storage box is fixedly installed on the left side of the box by screws.
[0006] Furthermore, as a preferred technical solution, a support frame is fixedly connected to the bottom end of the box, and casters and feet are installed on both sides of the bottom end of the support frame.
[0007] Furthermore, as a preferred technical solution, a heat dissipation plate is fixedly connected to the lower left side of the housing, and a decorative panel is fixedly connected to the front of the front door panel on one side of the first mounting plate.
[0008] Furthermore, as a preferred technical solution, an inlet ball valve is fixedly connected to one side of the plunger pump, and a Y-type filter and a pre-filter are fixedly connected to the other side of the plunger pump.
[0009] Furthermore, as a preferred technical solution, a brim is fixedly connected to one side of the top of the box, a nameplate is fixedly connected to the right side of the box, a second mounting plate is fixedly connected to the side of the box located on the brim, and a machine light is fixedly connected to the bottom of the second mounting plate.
[0010] Furthermore, as a preferred technical solution, a basin support is fixedly connected to the right side of the box body, and a washbasin is hinged to one side of the basin support via a second hinge.
[0011] Furthermore, as a preferred technical solution, the foam box outlet pipe is equipped with a foam concentration regulating valve and a foam solenoid valve, and a handwashing solenoid valve is provided on one side of the clean water tank.
[0012] Furthermore, as a preferred technical solution, a reinforcing rib is fixedly connected to the back side of the front door panel, an upper locking buckle is fixedly connected to one side of the reinforcing rib, a lower locking buckle is fixedly connected to the other side of the reinforcing rib, an upper locking rod matching the upper locking buckle is fixedly connected to the inside of the housing, and a lower locking rod matching the lower locking buckle is fixedly connected to the inside of the housing.
[0013] In summary, the present invention has the following main beneficial effects: First, in this invention, the interactive devices are centrally located on the same side and arranged in a neat and orderly manner. This not only meets the current market aesthetic requirements but also improves the interactive feedback of each function, attracting more users to experience the device and bringing more economic revenue to self-service car wash stations.
[0014] Secondly, in this invention, the controller is designed as a split modular unit, consisting of a low-voltage control module, a wireless communication module, and a high-voltage drive module. Each module is connected by a ribbon cable and operates independently, which facilitates installation and debugging during production. When any module fails, it can be directly replaced for quick repair, reducing maintenance costs.
[0015] Third, in this invention, three 4G modules and three NB-IoT modules are used in the wireless communication module, which are respectively bound to the mobile networks of the three major operators: China Mobile, China Unicom, and China Telecom. When in use, the controller will automatically select the network with the best signal quality for wireless communication, giving it multi-network redundancy communication capabilities, ensuring stable and reliable wireless communication with the server, and providing users with a good self-service car wash service.
[0016] Fourth, in this invention, an automatic water supply valve, a linear liquid level sensor, a high and low liquid level sensor, and a normally open solenoid valve are used simultaneously on the clean water tank, and an overflow port is designed to ensure the stability of the water supply, prevent the clean water tank from overflowing into the machine, improve the service life of the machine, and provide users with a good car washing experience.
[0017] Fifth, in this invention, a drive motor is used as the power source, which makes the operation more stable, the noise lower, the energy efficiency higher, and the lifespan longer.
[0018] Sixth, in this invention, multiple temperature sensors are installed to detect the water temperature at each stage in real time, and heat dissipation windows and heaters are designed so that this invention can be used normally in both high-temperature and low-temperature environments. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the front door panel opening according to the present invention; Figure 3 This is a schematic diagram of the back of the present invention.
[0020] Attached reference numerals: 01. Housing; 02. Second mounting plate; 03. Three 4G modules and three NB-IoT module antennas; 05. Nameplate; 06. Tempered glass display; 07. Car wash button; 08. Foam button; 09. Payment button; 10. First hinge; 11. Handwashing button; 12. Faucet; 13. Ventilation window; 14. Washbasin; 15. Basin bracket; 16. Second hinge; 31. Brim; 32. QR code tempered glass; 33. Front door panel; 34. Water clean button; 35. Vacuum button; 36. Baffle plate; 37. Storage box; 38. First mounting plate; 39. Decoration 40. Casters and feet; 51. Power adapter; 52. Residual current device (RCD); 53. Five-hole socket; 54. Locking latch; 55. AC contactor; 56. Thermal overload relay; 57. Electrical box; 58. Third hinge; 59. Ventilation holes; 60. Drive board; 61. Control and communication board; 62. IC card; 63. QR code scanner; 64. Water filling switch; 65. Handwashing solenoid valve; 66. Foam solenoid valve; 67. First temperature sensor; 68. First shelf; 69. Pressure gauge; 70. Lower locking latch; 71. Reinforcing rib; 81. Vacuum cleaner body; 82. Locking rod; 83. Foam. 84. Foam Concentration Regulating Valve; 85. Second Temperature Sensor; 86. Second Shelf; 87. Third Temperature Sensor; 88. Normally Open Solenoid Valve for Clean Water; 89. Panel Lock; 90. Heater; 91. Overflow Port; 92. Linear Level Sensor; 93. High and Low Level Sensors; 94. Vent Cap; 95. Clean Water Tank; 96. Check Valve; 97. Fourth Temperature Sensor; 98. Water Outlet Switch; 99. Pre-Filter; 100. Y-Type Filter; 101. Shutdown Function; 102. Inlet Ball Valve; 103. Lower Locking Rod; 104. Shock Absorber; 105. Support Frame; 112. Drive 113. Motor; 114. Pressure regulating valve; 115. Plunger pump; 116. Internal water pressure sensor; 117. Grounding bracket; 128. Water baffle; 129. TB terminal block; 120. Machine light; 121. TC terminal block; 122. Second water outlet; 123. Display screen; 124. Heating controller; 155. Cable outlet; 156. Leakage hole; 157. Upper heat dissipation vent; 158. Vacuum cleaner cable outlet; 159. Vacuum hose; 150. Lower heat dissipation vent; 151. Heat sink; 152. Water inlet; 183. Cable tie; 184. Cable inlet; 185. Overflow outlet. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0022] Example refer to Figure 1-3This embodiment describes a distributed control self-service car wash system with multi-model redundant network communication, comprising a housing 01. A front door panel 33 is hinged to the front side of the housing 01 via a first hinge 10. A first mounting plate 38 is fixedly connected to the front end of the front door panel 33. A tempered glass display 06 is provided on the front side of the first mounting plate 38. Below the tempered glass display 06, the first mounting plate 38 has a car wash button 07, a clean water button 34, a foam button 08, a vacuum button 35, a payment button 09, and a card block 36. A handwashing button 11 is provided on the right side of the housing 01. A faucet 12 is provided on the housing 01 below the handwashing button 11. A ventilation window 13 is provided on the housing 01 below the faucet 12. A QR code tempered glass 32 is fixedly connected to the left side of the display tempered glass 06 on the enclosure 01. A display screen 126, a heating controller 127, a power distribution box 57, an IC card 62, a QR code scanner 63, and a grounding bracket 116 are fixedly connected to the back of the front door panel 33. The power distribution box 57 consists of a power adapter 51, a leakage current protector 52, a five-hole socket 53, an AC contactor 55, a thermal overload relay 56, a third hinge 58, a heat dissipation hole 59, a drive board 60, and a control communication board 61. Three 4G modules and three NB-IoT module antennas 03 are provided on the other side of the top of the enclosure 01. Three 4G modules and three NB-IoT modules are used in the wireless communication module, which are respectively bound to China Mobile and China Unicom. When using the mobile networks of the three major telecom operators (China Telecom, China Unicom, and China Telecom), the controller automatically selects the network with the best signal quality for wireless communication, enabling multi-network redundancy and ensuring stable and reliable wireless communication with the server. This provides users with a good self-service car wash service. A first layer plate 68 is fixedly connected inside the housing 01. A second layer plate 86 is fixedly connected above the first layer plate 68 inside the housing 01. The first layer plate 68 and the second layer plate 86 divide the interior of the housing 01 into three layers: the first layer, the second layer, and the third layer. A shock absorber 104 is fixedly connected to one side of the first layer inside the housing 01. A drive motor 1 is fixedly connected to the top of the shock absorber 104. 12. A plunger pump 114 is fixedly connected to the other side of the first layer inside the housing 01. The plunger pump 114 is equipped with a pressure regulating valve 113, an internal water pressure sensor 115, a pressure gauge 69, and a shut-off valve 101. A clean water tank 95 is fixedly connected to one side of the second layer inside the housing 01. The clean water tank 95 is fixedly connected to a clean water tank 95 inlet pipe, a clean water tank 95 outlet pipe, a foam tank 83 outlet pipe, a handwashing pipe, and a heater 90. A linear liquid level sensor 92, a high and low liquid level sensor 93, and a fourth temperature sensor 97 are fixedly connected inside the clean water tank 95. A vent cap 94 is fixedly connected to the top of the clean water tank 95. An automatic water supply valve is fixedly connected to one side of the clean water tank 95 located at the vent cap 94.The clean water tank 95 has an overflow port 91 and a first water outlet. The water inlet pipe of the clean water tank 95 is equipped with a first temperature sensor 67 and a normally open solenoid valve 88 to ensure stable water supply, prevent water from overflowing into the machine, improve the machine's lifespan, and provide users with a better car washing experience. The water outlet pipe of the clean water tank 95 is equipped with a water outlet switch 98, a one-way valve 96, and a third temperature sensor 87. The water inlet pipe of the foam box 83 is equipped with a water filling switch 64. A vacuum cleaner body 81 is fixedly connected to one side of the third layer inside the housing 01, and the other side of the third layer inside the housing 01... A foam box 83 is fixedly connected. Inside the box 01, on one side of the third layer, there is a water-blocking groove 121, a TB terminal block 122, and a TC terminal block 124. The foam box 83 is equipped with a linear liquid level sensor 92, a vent valve, a second temperature sensor 85, a water inlet 158, and a second water outlet 125. The back of the box 01 also has a cable outlet 151, a cable inlet 182, a drain hole 152, an upper heat dissipation vent 153, a vacuum cleaner cable outlet 154, a lower heat dissipation vent 156, and an overflow outlet 183. A cable tie 181 is fixedly connected to the back of the box 01 near the cable inlet 182.
[0023] Please see Figure 2 The left side of the box 01 is provided with a panel lock 89, and a storage box 37 is fixedly installed on the left side of the box 01 by screws; the staff can open the left side of the box 01 with a key through the panel lock 89 to carry out internal maintenance. The storage box 37 installed on the left side of the box 01 can conveniently place the vacuum cleaner 155.
[0024] Please see Figure 2 The bottom of the box 01 is fixedly connected to a support frame 105, and casters and feet 40 are installed on both sides of the bottom of the support frame 105. By installing casters and feet 40 on the left and right sides of the bottom of the box 01, the bottom of the box 01 can be easily supported and moved.
[0025] Please see Figure 1 and Figure 3 A heat dissipation plate 157 is fixedly connected to the lower left side of the housing 01, and a decorative plate 39 is fixedly connected to the front of the front door panel 33 on one side of the first mounting plate 38. When the equipment is running, the heat generated by the internal components is dissipated through the heat dissipation plate 157 on the left side, and the decorative plate 39 of the front door panel 33 covers one side of the door panel mounting plate to beautify the appearance.
[0026] Please see Figure 2A water inlet ball valve 102 is fixedly connected to one side of the plunger pump 114, and a Y-type filter 100 and a pre-filter 99 are fixedly connected to the other side of the plunger pump 114. When water is introduced, the water inlet ball valve 102 controls the flow of water. The water first passes through the Y-type filter 100 to filter large particles of impurities, then passes through the pre-filter 99 for fine filtration, and finally enters the plunger pump 114.
[0027] Please see Figure 1 A basin support 15 is fixedly connected to the right side of the box body 01. A washbasin 14 is hinged to one side of the basin support 15 via a second hinge 16. A brim 31 is fixedly connected to one side of the top of the box body 01. A nameplate 05 is fixedly connected to the right side of the box body 01. The brim 31 serves to block light and facilitates the mobile phone to be aligned with the QR code tempered glass 32. When the user needs to wash their hands after washing the car, the washbasin 14 can be flipped down from the basin support 15. After washing hands, the washbasin 14 can be folded back into the support to save space.
[0028] Please see Figure 1 A second mounting plate 02 is fixedly connected to one side of the brim 31 on the housing 01, and a machine light 123 is fixedly connected to the bottom end of the second mounting plate 02; when the light is insufficient, the machine light 123 on the second mounting plate 02 is turned on to illuminate the operating area and the car wash area.
[0029] Please see Figure 2 The foam tank 83's outlet pipe is equipped with a foam concentration regulating valve 84 and a foam solenoid valve 66. The clean water tank 95's handwashing pipe on one side is equipped with a handwashing solenoid valve 65. When the user selects the foam function, the foam solenoid valve 66 opens, the foam concentration regulating valve 84 adjusts the foam concentration, and foam is sprayed out through the pipe. When the handwashing button 11 is pressed, the handwashing solenoid valve 65 opens, and water flows through the handwashing pipe to the faucet 12. Please refer to [link / reference]. Figure 1 A reinforcing rib 71 is fixedly connected to the back side of the front door panel 33. An upper locking buckle 54 is fixedly connected to one side of the reinforcing rib 71, and a lower locking buckle 70 is fixedly connected to the other side of the reinforcing rib 71. An upper locking rod 82 matching the upper locking buckle 54 is fixedly connected inside the housing 01, and a lower locking rod 103 matching the lower locking buckle 70 is fixedly connected inside the housing 01. The reinforcing rib 71 enhances the structural strength of the front door panel 33 and prevents the door panel from deforming. When the front door panel 33 is closed, the upper locking buckle 54 and the lower locking buckle 70 on the back side engage with the upper locking rod 82 and the lower locking rod 103 inside the housing 01, respectively, to fix the door panel.
[0030] Operating principle and advantages: Before use, 220V AC power needs to be supplied to the leakage current protector 52 and the leakage current protector 52 needs to be closed to turn on the machine. Then, use IC card 62 to swipe the card, QR code scanner 63 to scan the QR code, or mobile phone to scan the code to log in. When using the clean water function, pressing the clean water button 34 activates the communication board 61, which in turn controls the drive board 60 to open the AC contactor 55 and start the drive motor 112. At this time, clean water from the external municipal water pipe enters through the open inlet ball valve 102, passes through the Y-type filter 100 and the pre-filter 99, then flows through the third temperature sensor 87, the normally open clean water solenoid valve 88, and the automatic water supply valve into the clean water tank 95. The outlet switch 98 opens, and the clean water flows through the check valve 96 into the three-way valve, then through the first temperature sensor 67 into the plunger pump 114. The drive motor 112 then... The piston pump 114 pressurizes the clean water, generating high-pressure water. The high-pressure water flows through the high-pressure pipe, through the single-shaft double cantilever, and then into the clean water spray gun. Pressing the trigger of the clean water spray gun sprays out clean water. When using the foam function, pressing the foam button 08 controls the communication board 61 to open the foam solenoid valve 66 and controls the drive board 60 to open the AC contactor 55 to start the drive motor 112. At this time, clean water from the external municipal water pipe enters through the open inlet ball valve 102, passes through the Y-type filter 100 and the pre-filter 99, and then passes through the third temperature sensor 87 and the clean water... Normally open solenoid valve 88 and automatic water inlet valve flow into clean water tank 95. Water outlet switch 98 opens, and clean water flows through one-way valve 96 into three-way valve. At the same time, foam liquid enters three-way valve through second outlet 125, foam concentration regulating valve 84 and foam solenoid valve 66. Foam liquid and clean water mix in three-way valve to form foam liquid of a certain concentration, and then flow through first temperature sensor 67 into plunger pump 114. Drive motor 112 drives plunger pump 114 to pressurize foam liquid, generating high-pressure foam liquid. High-pressure foam liquid flows through high-pressure pipe through single-shaft double cantilever, and then flows through high-pressure pipe into foam spray. When using the foam spray gun, pressing the trigger will spray out foam liquid; when using the vacuuming function, pressing the vacuum button 35 will control the communication board 61 to control the drive board 60 to open the AC contactor 55 and start the vacuum cleaner body 81, and take out the vacuum hose 155 from the storage box 37 for use; when using the hand washing function, pressing the hand washing button 11 will control the communication board 61 to open the hand washing solenoid valve 65, at which time clean water is input from the external municipal water pipe through the opened water inlet ball valve 102, filtered by the Y-type filter 100 and the pre-filter 99, and then through the hand washing solenoid valve 65, and finally flows out from the faucet 12; The controller for the self-service car wash machine is designed as a modular unit, consisting of a low-voltage control module, a wireless communication module, and a high-voltage drive module. The low-voltage control module includes an MCU processor, voice amplifier circuit, sensor detection circuit, and signal drive circuit, responsible for the logic processing, information collection, and function driving of the self-service car wash machine. The wireless communication module includes an Arm core circuit, a USB interface expansion circuit, three 4G modules, and three NB-IoT modules. The 4G modules are Quectel EC800M-CNLE, and the NB-IoT modules are Quectel BC260Y-CNAA. The three 4G and three NB-IoT modules connect to SIM cards from China Mobile, China Unicom, and China Telecom respectively, binding to their respective mobile networks, and are responsible for wireless communication between the self-service car wash machine and the server. The high-voltage drive module... The active module includes surge protection circuits, signal isolation circuits, relay drive circuits, etc., and is responsible for driving the motor, vacuum cleaner body 81, lighting and other high-voltage electrical appliances of the self-service car wash machine. Each module is connected by ribbon cables and operates independently, which facilitates installation and debugging during production. When any module fails, it can be directly replaced for quick repair, reducing maintenance costs. It uses three 4G modules and three NB-IoT modules, and is equipped with three 4G module antennas and three NB-IoT module antennas 03. When powered on, it will prioritize the 4G network with the best signal quality for wireless communication. If the current operator's network signal quality weakens or is interrupted, it will automatically switch to other operators' 4G networks for wireless communication. If all three operators' 4G networks are abnormal, the NB-IoT network will be used. The network selection mechanism is the same as that of the 4G network. Currently, most urban areas in my country are covered by 4G networks. However, the quality of 4G networks varies across different regions and among different operators. By using three 4G modules, each bound to one of the three operators' 4G networks, adaptive selection of the 4G network for the current site location can be achieved. Furthermore, if the site location is relatively remote and the 4G network quality of all three operators is weak, the NB-IoT network will be activated. NB-IoT networks offer longer wireless communication distances and lower power consumption than 4G networks. By using three 4G modules and three NB-IoT modules, the self-service car wash machine possesses multi-network redundancy communication capabilities, ensuring stable and reliable wireless communication with the server and providing users with a superior self-service car wash service.
Claims
1. A self-service car wash system with distributed control and multi-model redundant network communication, characterized in that: The device includes a housing, with a front door panel hinged to the front side of the housing via a first hinge. A first mounting plate is fixedly connected to the front end of the front door panel. A tempered glass display is located on the front side of the first mounting plate. Below the tempered glass display, the first mounting plate has buttons for car washing, clean water, foaming, vacuuming, payment, and a card holder. A handwashing button is located on the right side of the housing. A faucet is located below the handwashing button on the housing. A ventilation window is located below the faucet on the housing. A QR code tempered glass is fixedly connected to the left side of the tempered glass display on the housing. A display screen, heating controller, electrical control box, IC card, QR code scanner, and grounding bracket are fixedly connected to the back of the front door panel. The electrical control box includes a power adapter, a leakage current protector, a five-hole socket, an AC contactor, a thermal overload relay, a second hinge, ventilation holes, a drive board, and a control panel. The enclosure is constructed from a communication board. Three 4G modules and three NB-IoT module antennas are located on the top side of the enclosure. A shock absorber is fixedly connected to one side of the enclosure's interior. A drive motor is fixedly connected to the top of the shock absorber. A plunger pump is fixedly connected to one side of the drive motor inside the enclosure. A clean water tank is fixedly connected to the top of the drive motor inside the enclosure. A heater is fixedly connected to the clean water tank. A linear liquid level sensor, a high / low liquid level sensor, and a third temperature sensor are fixedly connected to the inside of the clean water tank. An automatic water inlet valve is fixedly connected to one side of the vent cap in the clean water tank. The clean water tank has an overflow port. A temperature sensor and a normally open solenoid valve are installed in the clean water tank's inlet pipe. A vacuum cleaner body is fixedly connected to the top of the clean water tank inside the enclosure. A foam box is fixedly connected to one side of the vacuum cleaner body inside the enclosure.
2. The self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: The left side of the box is equipped with a panel lock, and a storage box is fixedly installed on the left side of the box with screws.
3. The self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: The bottom of the box is fixedly connected to a support frame, and casters and feet are installed on both sides of the bottom of the support frame.
4. The self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: A heat dissipation plate is fixedly connected to the lower left side of the enclosure, and a decorative panel is fixedly connected to the front of the front door panel on one side of the first mounting plate.
5. A self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: A water inlet ball valve is fixedly connected to one side of the plunger pump, and a Y-type filter and a pre-filter are fixedly connected to the other side of the plunger pump.
6. The self-service car wash system with distributed control and multi-model redundant network communication according to claim 1, characterized in that: A cap brim is fixedly connected to one side of the top of the box, and a nameplate is fixedly connected to the right side of the box.
7. A self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: A basin support is fixedly connected to the right side of the box, and a washbasin is hinged to one side of the basin support via a second hinge.
8. A self-service car wash system with distributed control and multi-model redundant network communication as described in claim 6, characterized in that: A second mounting plate is fixedly connected to one side of the housing located on the brim, and a machine light is fixedly connected to the bottom end of the second mounting plate.
9. A self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: The foam tank outlet pipe is equipped with a foam concentration regulating valve and a foam solenoid valve, and a handwashing solenoid valve is provided on one side of the clean water tank.
10. A self-service car wash system with distributed control and multi-model redundant network communication as described in claim 1, characterized in that: A reinforcing rib is fixedly connected to the back side of the front door panel. An upper locking buckle is fixedly connected to one side of the reinforcing rib, and a lower locking buckle is fixedly connected to the other side of the reinforcing rib. An upper locking rod that matches the upper locking buckle is fixedly connected to the inside of the housing, and a lower locking rod that matches the lower locking buckle is fixedly connected to the inside of the housing.