Pump tank truck

Abstract

The embodiment of the application discloses a pump truck, comprising a flow meter for monitoring the flow of liquid in the pump truck; a positioning device for determining the self-position information of the pump truck; and a controller configured to perform the following steps: calculating the relative position distance between the pump truck and a target tank according to the self-position information and the position information of the target tank; and controlling the pump truck to perform a parking brake if it is detected that the relative position distance is less than a preset relative position distance and the amount of liquid in the pump truck is reduced. Under the unloading operation condition that the relative position distance between the pump truck and the target tank is less than the preset relative position distance, whether the pump truck is controlled to perform a parking brake is determined by detecting whether the amount of liquid in the pump truck is reduced; and if it is detected that the amount of liquid in the pump truck is reduced, the pump truck is quickly controlled to perform a parking brake, so as to avoid safety accidents caused by the mistaken movement of the pump truck.

Description

Technical Field

[0001] This application relates to the field of vehicles, specifically to a tanker truck equipped with a pump. Background Technology

[0002] Liquefied petroleum gas (LPG) is widely used as a clean energy source in various fields. In cities or relatively developed towns, LPG can be transported through underground pipelines to meet transportation needs. However, in remote mountainous areas, due to the combined effects of geographical environment and pipeline construction costs, it is difficult to transport LPG through pipelines. Instead, LPG is usually transported to remote mountainous areas using tanker trucks equipped with pumps.

[0003] The lack of strict supervision over unloading operations using pump trucks makes it impossible to guarantee safety during the unloading process and reduce the occurrence of safety accidents. Summary of the Invention

[0004] To address the aforementioned technical problems, embodiments of this application provide a tank truck equipped with a pump, which applies a parking brake to the tank truck during unloading operations to prevent it from rolling away during the unloading process.

[0005] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0006] According to one aspect of the embodiments of this application, a pumped tanker truck is provided, a flow meter for monitoring the liquid flow rate in the pumped tanker truck, a positioning device for determining the self-position information of the pumped tanker truck, and a controller configured to perform the following steps: calculating the relative position distance between the pumped tanker truck and the target storage tank based on the self-position information and the position information of the target storage tank; if it is detected that the relative position distance is less than a preset relative position distance and the liquid volume in the pumped tanker truck decreases, then controlling the pumped tanker truck to apply the parking brake.

[0007] When a tanker truck with a pump is unloading liquid on uneven ground, the reduced weight of the truck decreases the friction between it and the ground, potentially causing the vehicle to move and leading to a safety accident. In this embodiment, under unloading conditions where the relative distance between the tanker truck with a pump and the target storage tank is less than a preset relative distance, if a decrease in the liquid volume in the tanker truck with a pump is detected, the truck with a pump is quickly brought to parking to prevent accidental movement and resulting safety accidents.

[0008] In another exemplary embodiment, the pump-equipped tanker further includes: an identity information collection device for collecting the operator's identity information; the controller is also configured to perform the following steps: in response to an instruction to perform unloading operations, matching the identity information with preset identity information to obtain an identity information matching result; if the identity information matching result indicates that the identity information matching is successful, then acquiring the self-location information and the location information of the target storage tank.

[0009] This embodiment matches the identity information collected by the identity information collection device with preset identity information to verify the operator's identity and thus supervise the operator. Simultaneously, in order to perform the unloading operation, the relative distance between the tank truck and the target storage tank must be less than a preset relative distance to ensure that the liquid in the pumped tank truck is transferred to the target storage tank and to prevent safety accidents caused by the liquid being transferred to other non-standard containers.

[0010] In another exemplary embodiment, the controller is further configured to perform the following steps: during the unloading operation, detecting whether the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank; if the decrease is less than the increase, then stopping the unloading operation.

[0011] This embodiment determines whether there is a risk of leakage during the unloading operation by detecting whether the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank. If the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank, the unloading operation is stopped immediately to avoid safety accidents during the unloading process and improve the safety of the unloading operation.

[0012] In another exemplary embodiment, the pump truck further includes: a pump gun sensing device for acquiring the operating status of the pump gun; the controller is also configured to perform the following steps: if the relative position distance is detected to be less than a preset relative position distance, and the operating status of the pump gun indicates that the pump gun is in operation, then the unloading operation is performed.

[0013] This embodiment detects that the relative position distance is less than a preset relative position distance and simultaneously determines whether the pump gun is in operation. If the pump gun is detected to be in operation, the unloading operation is performed. This avoids safety accidents during the unloading operation and improves the safety of the unloading process.

[0014] In another exemplary embodiment, the pumped tanker further includes: a gas detector for collecting the gas concentration of combustible gas; the controller is also configured to perform the following steps: detecting whether the gas concentration of the combustible gas is greater than a preset gas concentration; if the gas concentration of the combustible gas is detected to be greater than the preset gas concentration, then stopping the unloading operation.

[0015] This embodiment adds a gas detector to detect whether the concentration of combustible gas around the pump truck is greater than a preset gas concentration. If the concentration of combustible gas is detected to be greater than the preset gas concentration, the unloading operation will be stopped immediately to avoid safety accidents and improve the safety of the unloading operation.

[0016] In another exemplary embodiment, the tanker truck with pump further includes: a liquid unloading pump for pumping liquid from the storage tank of the tanker truck to the target storage tank; a solenoid valve for controlling the flow rate of liquid pumped by the liquid unloading pump; the controller is also configured to perform the following steps: if the gas concentration of the combustible gas is detected to be greater than the preset gas concentration, then control the solenoid valve to close and control the liquid unloading pump to stop pumping operation.

[0017] If the concentration of combustible gas detected is greater than the preset gas concentration, this embodiment closes the solenoid valve controlling the unloading pump to quickly stop the liquid from flowing out of the storage tank, thereby stopping the unloading operation.

[0018] In another exemplary embodiment, the tanker truck with pump further includes: an emergency switch for generating a shutdown command to close the solenoid valve and the unloading pump; the controller is also configured to perform the following steps: if the shutdown command is detected, control the shutdown of the solenoid valve and the unloading pump.

[0019] In another exemplary embodiment, the pump-equipped tanker further includes: a temperature sensor for collecting the storage temperature in the storage tank; the controller is also configured to perform the following steps: detecting whether the storage temperature exceeds a preset temperature threshold; if the storage temperature exceeds the preset temperature threshold, stopping the unloading operation.

[0020] This embodiment installs a temperature sensor in the pump truck to detect whether the liquid storage temperature is within the safe storage temperature range. If the storage temperature exceeds the safe storage temperature range, the unloading operation is stopped immediately to ensure the safety of the unloading process.

[0021] In another exemplary embodiment, the pump-equipped tanker further includes: a pressure sensor for acquiring the gas pressure in the storage tank; the controller is also configured to perform the following steps: detecting whether the gas pressure exceeds a preset pressure threshold; if the gas pressure exceeds the preset pressure threshold, stopping the unloading operation.

[0022] This embodiment uses a pressure sensor to collect the gas pressure in the storage tank, thereby introducing pressure parameters to conduct another layer of safety supervision for the unloading operation. If the pressure value collected by the pressure sensor exceeds the preset pressure threshold, it indicates that the pressure value in the storage tank is too high. In order to avoid safety accidents, the unloading operation needs to be stopped and an alarm is triggered to remind the operators to carry out safety maintenance.

[0023] In another exemplary embodiment, the pumped tanker truck further includes: a collision sensor for collecting the collision force experienced by the pumped tanker truck; the controller is also configured to perform the following steps: if the collision force is detected to be greater than a preset collision force, then stop performing the unloading operation.

[0024] In the technical solution provided by the embodiments of this application, under the condition that the relative positional distance between the pumped tanker and the target storage tank is less than the preset relative positional distance during unloading operations, the pumped tanker is controlled to apply the parking brake by detecting whether the amount of liquid in the pumped tanker has decreased; if the amount of liquid in the pumped tanker is detected to have decreased, the pumped tanker is quickly controlled to apply the parking brake to avoid safety accidents caused by the pumped tanker moving accidentally.

[0025] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this application. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0027] Figure 1 This is a structural schematic diagram of a pump tanker truck involved in this application;

[0028] Figure 2 This is a schematic diagram illustrating an implementation environment as shown in an exemplary embodiment of this application;

[0029] Figure 3 This is a front view of a pump truck shown in an exemplary embodiment of this application;

[0030] Figure 4 This is a top view of a pump truck shown in an exemplary embodiment of this application;

[0031] Figure 5 This is a flowchart illustrating a control method for a tanker truck with a controller, as shown in an exemplary embodiment of this application;

[0032] Figure 6 This is a flowchart illustrating another control method with a controller in a pump truck, as shown in another exemplary embodiment of this application;

[0033] Figure 7 This is a flowchart illustrating another control method with a controller in a pump truck, as shown in another exemplary embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the structure of a computer system for an electronic device, as illustrated in an exemplary embodiment of this application. Detailed Implementation

[0035] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0036] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0037] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0038] In this application, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0039] When tank trucks equipped with pumps are unloading liquids on uneven ground, especially on slopes, there is friction between the tank truck and the road surface. If the weight of the tank truck is reduced, the friction between it and the ground decreases, which can cause the vehicle to move and lead to a safety accident.

[0040] Therefore, this application provides a tank truck with a pump that automatically applies a parking brake to the tank truck during unloading operations to prevent the tank truck from rolling away during the unloading process.

[0041] Please refer to details. Figure 1 , Figure 1 This is a schematic diagram of a pump-equipped tanker truck involved in this application. The pump-equipped tanker truck 100 includes: a flow meter 112 for monitoring the liquid flow rate in the pump-equipped tanker truck, capable of sensing the increase or decrease of liquid in the storage tank of the pump-equipped tanker truck; a positioning device 102 for determining the location information of the pump-equipped tanker truck itself, such as a device with GPS (Global Positioning System) positioning function; and a controller 103, which can be placed inside the pump-equipped tanker truck 100 or independently outside the pump-equipped tanker truck 100. It can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, where multiple servers can form a blockchain, and the server is a node on the blockchain. The controller 103 can also be a cloud server providing basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms. This application does not impose any limitations on this.

[0042] In certain specific implementation environments, the controller 103 described above can be placed in the pump truck 100, and it can be the central control system of the pump truck. Please refer to the following for details. Figure 2 , Figure 2 This is a schematic diagram illustrating an implementation environment according to an exemplary embodiment of this application. The management platform 300 is connected to the pump-equipped tanker truck 100 and the target storage tank 200 via a SIM card network or other wireless communication methods. The management platform 300 can receive real-time location information from the pump-equipped tanker truck 100 and the target storage tank 200, and can simultaneously send the location information of the target storage tank 200 to the controller 103, so as to calculate the relative distance between the pump-equipped tanker truck 100 and the target storage tank 200 based on their respective location information.

[0043] The controller 103 can obtain the location information sent by the target storage tank 200 to the management platform 300, or it can directly obtain the location information from the target storage tank 200, provided that the controller 103 and the target storage tank 200 establish a communication connection and can transmit data between them.

[0044] The controller 103 calculates the relative position distance between the pumped tanker truck 100 and the target storage tank 200 based on its own position information and the position information of the target storage tank 200. If the relative position distance is detected to be less than the preset relative position distance and the amount of liquid in the pumped tanker truck 100 decreases, the controller controls the pumped tanker truck 100 to apply the parking brake.

[0045] In another exemplary embodiment, the specific structure of the pump truck is described by way of example; please refer to [link / reference needed]. Figure 3 and Figure 4 , Figure 3 This is a front view of a pump truck shown in an exemplary embodiment of this application.

[0046] Figure 4 This is a top view illustrating an exemplary embodiment of this application, showing a tanker truck with a pump. Figure 3 and Figure 4 As shown, the pump tanker 100 includes an identity information collection device 101, a positioning device 102, a controller 103, an emergency switch 104, a gas detector 105, a hydraulic pump solenoid valve 106, a pre-pump pressure transmitter 107, a gas detector 108, a level transmitter receiver box 109, a post-pump pressure transmitter 110, an explosion-proof light 111, a flow meter 112, a rear data acquisition box 113, a hose reel junction box 114, an electric hose reel 115, a nozzle limit switch 116, a brake solenoid valve 117, an emergency shut-off valve solenoid valve 118, a door detection limit switch 119, a lighting switch 120, a combination lock 121, a collision sensor 122, and a height detection rod 123. The pre-pump pressure transmitter 107 and post-pump pressure transmitter 110 constitute the pressure sensor in the following embodiments; the nozzle limit switch 116 is similar to the pump nozzle sensing device in the following embodiments, and is used to obtain the operating status of the pump nozzle. For example, when the nozzle limit switch 116 is open, the pump nozzle is in the operating state; when the nozzle limit switch 116 is closed, the pump nozzle is in the non-operating state.

[0047] The controller 103 is installed in the cab. An emergency switch 104, installed on the left rear side of the cab, is connected to the controller 103 to control the emergency shut-off valve solenoid 118 and the hydraulic pump solenoid valve 106. Pressing the emergency switch 104 quickly closes the emergency shut-off valve solenoid 118 and the hydraulic pump solenoid valve 106. A collision sensor 520 is installed at the rear of the vehicle. The collision sensor 122 has a rear-end collision warning function and is linked to the emergency shut-off valve solenoid 118 and the hydraulic pump solenoid valve 106. The controller 103 is connected to the tanker truck management platform via a SIM card network, allowing real-time uploading of parameters such as temperature, pressure, and level of the liquid / gas inside the tank to the management platform for real-time monitoring of the tanker truck.

[0048] Please see Figure 5 , Figure 5This is a flowchart illustrating a control method for a tanker truck with a controller, as shown in an exemplary embodiment of this application. The method can be... Figures 1 to 4 Any controller 103 can specifically execute this method. Of course, this method can also be applied to other implementation environments and executed by server devices in other implementation environments; this embodiment does not limit this. For example... Figure 5 As shown, controller 103 is configured to execute S510 to S520, as detailed below:

[0049] S510: Calculate the relative distance between the pump truck and the target storage tank based on its own location information and the location information of the target storage tank.

[0050] The self-location information refers to the location information of the pump truck. The target storage tank is a container used to store the transferred liquid, specifically the liquid in the storage tank of the pump truck.

[0051] The self-position information and the target tank position information can be coordinate information in a two-dimensional coordinate system. For example, the self-position information is (1, 2) and the target tank position information is (2, 3).

[0052] For example, if the location information of the tanker truck with pump is (x1, y1) and the location information of the target storage tank is (x2, y2), then the relative distance between the tanker truck and the target storage tank can be calculated according to the following formula:

[0053]

[0054] Where D represents the relative distance between the tanker truck and the target storage tank; (x1, y1) represents the coordinates of the tanker truck itself; and (x2, y2) represents the coordinates of the target storage tank.

[0055] S520: If the relative position distance is detected to be less than the preset relative position distance and the amount of liquid in the pump tanker decreases, then control the pump tanker to apply the parking brake.

[0056] The preset relative position distance is a preset value, and its unit is the same as that of the relative position distance.

[0057] For example, if the relative position distance is detected to be less than the preset relative position distance, it indicates that the target storage tank is within the operating range of the tank truck, which is a prerequisite for the tank truck to perform unloading operations. At this time, if the amount of liquid in the tank truck with pump is detected to decrease, it indicates that the tank truck with pump is in the process of unloading operations. In order to avoid the tank truck with pump moving due to the decrease of friction between the tank truck with pump and the ground, the tank truck with pump is controlled to apply the parking brake in time, thereby improving the safety of the unloading process.

[0058] If the detected relative distance is greater than the preset relative distance, it indicates that the target storage tank is not within the working range. This means the straight-line distance between the liquid storage tank in the pump truck and the target storage tank is too far to meet the operational requirements for liquid transfer. The alarm indicating that the target storage tank is not within the working range promptly informs the operators that neither the liquid storage tank nor the target storage tank is within the working area, allowing them to analyze and determine the current operational fault.

[0059] In addition, if the relative position distance detected is greater than the preset relative position distance, but the unloading operation is currently underway, liquid leakage may occur, or the liquid in the storage tank may be transferred to a non-target storage tank. At the same time as the alarm prompts that the target storage tank is not within the operation range, the unloading operation can be stopped immediately.

[0060] In this embodiment, under the condition that the relative positional distance between the pumped tanker and the target storage tank is less than the preset relative positional distance, the pumped tanker is controlled to apply the parking brake by detecting whether the liquid volume in the pumped tanker has decreased. If the liquid volume in the pumped tanker is detected to have decreased, the pumped tanker is quickly controlled to apply the parking brake to avoid safety accidents caused by accidental movement of the pumped tanker.

[0061] Pump tank trucks themselves have strict requirements for operation and use supervision. Operators need to be strictly supervised, and safety must be ensured during operation to reduce the occurrence of safety accidents.

[0062] Therefore, in another exemplary embodiment, the pump truck is also equipped with an identity information collection device for collecting the operator's identity information, such as a device with camera function, fingerprint collection device, voiceprint collection device, iris collection device, etc.

[0063] Please refer to details. Figure 6 , Figure 6 This is a flowchart illustrating another exemplary embodiment of the control method for a controller in a pump truck. (See attached flowchart.) Figure 6 As shown, controller 103 is also configured to execute S610 to S620:

[0064] S610: In response to the instruction to perform unloading operation, the identity information is matched with the preset identity information to obtain the identity information matching result.

[0065] The instruction to perform the unloading operation is triggered by the operator. For example, the operator sends a request to the central control platform, and the platform sends the corresponding instruction to the controller 103 to perform the unloading operation, causing the controller 103 to respond to the instruction. Each request corresponds to at least one target operation; that is, one request can correspond to multiple target operations simultaneously. The target operations can be operations other than unloading. The preset identity information is pre-entered information, including the identity information of one or more operators, such as at least one type of identity information including fingerprints, voice waves, and facial image information.

[0066] For example, when the controller 103 receives the instruction to perform the unloading operation, it matches the fingerprint information of the current operator collected by the identity information collection device 101 with the preset fingerprint information in the preset identity information. If the preset fingerprint information is matched, a matching result indicating successful identity information matching is obtained; if the preset fingerprint information is not matched, a matching result indicating failed identity information matching is obtained.

[0067] S620: If the identity information matching result indicates that the identity information is successfully matched, then obtain the location information of itself and the location information of the target storage tank.

[0068] In some embodiments, the identity authentication method can be applied to implementation environments with poor signal. That is, the specific processing of identity authentication can be handled by the controller 103 of the pump tanker 100. Specifically, the management platform 300 pre-sends the identity information of the trained and qualified operators to the controller 103 in the pump tanker 100. The controller 103 in the pump tanker 100 matches the collected identity information with the built-in authorized identity information and determines whether to issue an instruction to execute the target operation based on the matching result. If the identity information matching result indicates that the identity information is successfully matched, the controller 103 obtains its own location information and obtains the location information of the target storage tank 102 from the target storage tank information built into the controller 103; or it directly obtains the location information from the target storage tank 102, provided that the controller 103 and the target storage tank 102 establish a communication connection and can transmit data between them.

[0069] In some embodiments, to enhance the management platform 300's oversight and control of the pump truck 100, the specific identity authentication process can be handled within the management platform 300. Specifically, the pump truck 100 uploads the collected identity information to the management platform 300, which then performs identity information matching and determines whether to issue an instruction to execute the target operation to the controller 103 within the pump truck 100 based on the matching result. If the identity information matching result indicates successful matching, the management platform 300 issues an instruction to execute the target operation to the controller 103, enabling the controller 103 to obtain its own location information and the location information of the target storage tank 102 from the management platform 300; or it can directly obtain the location information from the target storage tank 102, provided that the controller 103 and the target storage tank 102 establish a communication connection and can transmit data between them.

[0070] This embodiment matches the identity information collected by the identity information collection device with preset identity information to verify the operator's identity and thus supervise the operator. Simultaneously, in order to perform the unloading operation, the relative distance between the tank truck and the target storage tank must be less than a preset relative distance to ensure that the liquid in the pumped tank truck is transferred to the target storage tank and to prevent safety accidents caused by the liquid being transferred to other non-standard containers.

[0071] If improper supervision or operation occurs during the loading / unloading of liquefied gas in tank trucks equipped with pumps, safety hazards such as liquefied gas leaks can easily occur, and even lead to fires, explosions, and other safety accidents, seriously endangering people's lives and social property. Currently available tank trucks equipped with pumps lack operational control systems, resulting in poor safety and making them prone to such accidents due to improper operation by personnel.

[0072] Therefore, in another exemplary embodiment, the flow meter records an initial reading at an initial moment. During the unloading operation, the flow meter records the current reading at the current moment. Based on the difference between the initial reading and the current reading at the current moment, the flow rate of the liquid being unloaded during the unloading operation at the current moment is determined. Please refer to [link / reference] for details. Figure 7 , Figure 7 This is a flowchart illustrating another exemplary embodiment of the control method for a controller in a pump truck. (See attached flowchart.) Figure 7 As shown, controller 103 is also configured to perform the following steps:

[0073] S710: During the unloading operation, check whether the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank.

[0074] Because flow meters are far more expensive than level gauges, in practical applications, both flow meters installed on the pump truck and level gauges installed on the target storage tank can collect and record the amount of liquid decrease or increase. The level gauge records the initial liquid level in the target storage tank, and during the unloading operation with the pump truck, it records the current liquid level. The difference between the current liquid level and the initial liquid level represents the increase in liquid in the target storage tank. Alternatively, if cost is not a concern, a flow meter can also be installed on the target storage tank.

[0075] In an ideal, safe, leak-free unloading operation that does not consider liquid evaporation, the amount of liquid reduction in the pump tanker should equal the amount of liquid increase in the target storage tank, meaning that all the liquid in the pump tanker has been transferred to the target storage tank.

[0076] S720: If the reduction is less than the increase, stop the unloading operation.

[0077] In real-world scenarios, issues such as liquid evaporation or instrument accuracy can cause discrepancies between the reduction and increase amounts, resulting in a certain difference between them. Therefore, in the preferred embodiment, if the reduction amount is less than the increase amount, and the difference between the reduction and increase amounts is greater than a preset difference, it indicates that the liquid reduced in the pump truck has not been completely transferred to the target storage tank, posing a risk of leakage. To avoid a safety accident, the unloading operation is stopped.

[0078] This embodiment determines whether there is a risk of leakage during the unloading operation by detecting whether the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank. If the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank, the unloading operation is stopped immediately to avoid safety accidents during the unloading process and improve the safety of the unloading operation.

[0079] To ensure that the reduction in liquid in the storage tank of the pump truck is not caused by a leak, other auxiliary testing steps are needed to determine whether the reduction in liquid / gas in the storage tank is caused by the unloading operation.

[0080] Therefore, in another exemplary embodiment, the pump truck is also equipped with a pump gun sensing device to acquire the operating status of the pump gun. The controller 103 is also configured to perform the following steps:

[0081] If the relative position distance is detected to be less than the preset relative position distance, and the pump gun's operating status indicates that the pump gun is in operation, then the unloading operation will be performed.

[0082] During unloading operations, the pump nozzle must be operational. If the pump nozzle is not operational but unloading is still underway, it may be due to liquid leakage or other malfunctions, requiring analysis of the specific situation.

[0083] The operating status of the pump nozzle can be determined based on its real-time position. If the pump nozzle is placed on the nozzle holder, it indicates that the pump nozzle is in an inactive state; if the pump nozzle is not placed on the nozzle holder, it indicates that the pump nozzle is in an operational state. The operating status of the pump nozzle can also be classified according to its movement trajectory. If a movement trajectory is detected, it indicates that the pump nozzle is in an operational state; if no movement trajectory is detected, it indicates that the pump nozzle is not in an operational state.

[0084] This embodiment detects that the relative position distance is less than a preset relative position distance and simultaneously determines whether the pump gun is in operation. If the pump gun is detected to be in operation, the unloading operation is performed. This avoids safety accidents during the unloading operation and improves the safety of the unloading process.

[0085] In another exemplary embodiment, to prevent liquid leakage, at least one gas detector is installed around the pump truck to collect the concentration of combustible gas. The combustible gas is an alkane or olefin, such as propane (C3H8), propylene (C3H6), or butane (C4H4H6). 10 It contains butene (C4H8) and butadiene (C4H6), as well as small amounts of methane (CH4), ethane (C2H6), and pentane (C5H6). 12 ) and hydrogen sulfide (H2S) and other components. The controller 103 is also configured to perform the following steps:

[0086] Detect whether the concentration of combustible gas is greater than the preset gas concentration;

[0087] If the concentration of combustible gas detected is greater than the preset concentration, the unloading operation will be stopped.

[0088] The preset gas concentration is a pre-set standard parameter used to measure whether the concentration of volatile flammable gas exceeds the preset standard parameter. If the concentration of flammable gas detected is greater than the preset gas concentration, it indicates that the concentration of flammable gas around the pump tanker exceeds the safe standard parameter, posing a safety risk, and the unloading operation will be stopped.

[0089] This embodiment adds a gas detector to detect whether the concentration of combustible gas around the pump truck is greater than a preset gas concentration. If the concentration of combustible gas is detected to be greater than the preset gas concentration, the unloading operation will be stopped immediately to avoid safety accidents and improve the safety of the washing operation.

[0090] In another exemplary embodiment, the tanker truck with pump also includes an unloading pump for pumping liquid from the storage tank of the tanker truck to the target storage tank; and a solenoid valve for controlling the flow rate of liquid pumped by the unloading pump. The controller 103 is also configured to perform the following steps:

[0091] If the concentration of combustible gas detected is greater than the preset concentration, the solenoid valve will be closed and the unloading pump will be stopped.

[0092] This embodiment further illustrates that during the unloading operation, if the concentration of combustible gas is detected to be greater than the preset gas concentration, the solenoid valve controlling the unloading pump is closed to quickly stop the liquid from flowing out of the storage tank. This achieves an interlocked termination operation in abnormal situations, that is, simultaneously closing the emergency shut-off valve and the unloading pump to stop the unloading operation.

[0093] In some embodiments, the tanker truck with pump also includes: an emergency switch for generating a shutdown command to close the solenoid valve and the unloading pump; the controller is also configured to perform the following steps: if a shutdown command is detected, control the shutdown of the solenoid valve and the unloading pump. This allows for quick, one-button shutdown of the solenoid valve and the unloading pump.

[0094] To improve safety during operation, in another exemplary embodiment, at least one temperature sensor is installed in the pump truck to collect the storage temperature in the storage tank. The controller 103 is also configured to perform the following steps:

[0095] Check if the storage temperature exceeds the preset temperature threshold;

[0096] If the storage temperature is detected to exceed the preset temperature threshold, the unloading operation will be stopped.

[0097] The preset temperature threshold is a pre-set parameter, which can be a single parameter or a range of parameters, such as [1, 10], (1, 20), [1, 15), etc.

[0098] Liquefied petroleum and similar substances have certain requirements for storage temperature. Exceeding a certain storage temperature may cause safety accidents such as explosions. Therefore, this embodiment installs a temperature sensor in the pump tanker to detect whether the storage temperature of the liquid is within the safe storage temperature range. If the storage temperature exceeds the safe storage temperature range, the unloading operation will be stopped immediately to ensure the safety of the unloading process.

[0099] To improve safety during unloading operations, in another exemplary embodiment, at least one pressure sensor is installed in the pump truck to collect the gas pressure in the storage tank; the controller 103 is also configured to perform the following steps:

[0100] Detect whether the gas pressure exceeds a preset pressure threshold;

[0101] If the gas pressure is detected to exceed the preset pressure threshold, the unloading operation will be stopped.

[0102] The preset pressure threshold is a pre-set parameter, which can be a single parameter or a range of parameters.

[0103] The pressure sensor can collect the pressure value in the storage tank. The controller 103 acquires the collected pressure value and compares it with a preset pressure threshold to determine whether to stop the unloading operation. For example, if the controller acquires a pressure value of 10 Pa from the pressure sensor, and the preset pressure threshold is (1 Pa, 9 Pa), then the pressure value exceeds the preset pressure threshold. This indicates that the pressure in the storage tank is too high. To avoid a safety accident, the unloading operation needs to be stopped, and an alarm is triggered to remind the operators to perform safety maintenance.

[0104] To improve safety during operation, in another exemplary embodiment, at least one collision sensor is installed around the pump truck to collect the impact force experienced by the pump truck. The controller 103 is also configured to perform the following steps:

[0105] If the detected collision force is greater than the preset collision force, the unloading operation will be stopped.

[0106] This embodiment does not limit the specific location of the collision sensor. The collision sensor can be installed at the rear of the tanker truck with pump. The collision force it collects indicates whether the tanker truck with pump has been rear-ended. If the tanker truck with pump is rear-ended, the collision force collected by the collision sensor is greater than the preset collision force. In this case, to ensure the safety of the unloading operation, the unloading operation needs to be stopped immediately. This is to avoid liquid / gas leakage, combustion, or explosion accidents caused by vehicle collisions or rear-end collisions during the unloading operation.

[0107] Similarly, collision sensors can also be installed at the front, left, and right of the pump truck, with at least one sensor installed. Multiple collision sensors can be installed around the pump truck to compare and analyze the collision force collected by each sensor with its corresponding preset collision force to determine whether to stop the unloading operation.

[0108] Another aspect of this application provides an electronic device, comprising: a controller as described above; and a memory for storing one or more programs, which, when executed by the controller, perform the steps configured by the controller.

[0109] Please see Figure 8 , Figure 8 This is a schematic diagram of the structure of a computer system for an electronic device, illustrating an exemplary embodiment of this application. It shows a schematic diagram of the structure of a computer system suitable for implementing the embodiments of this application.

[0110] It should be noted that, Figure 8The computer system 800 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0111] like Figure 8 As shown, the computer system 800 includes a Central Processing Unit (CPU) 801, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, based on programs stored in Read-Only Memory (ROM) 802 or programs loaded from storage portion 808 into Random Access Memory (RAM) 803. The RAM 803 also stores various programs and data required for system operation. The CPU 801, ROM 802, and RAM 803 are interconnected via a bus 804. An Input / Output (I / O) interface 805 is also connected to the bus 804.

[0112] The following components are connected to I / O interface 805: an input section 806 including a keyboard, mouse, etc.; an output section 807 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 808 including a hard disk, etc.; and a communication section 809 including a network interface card such as a LAN (Local Area Network) card, modem, etc. The communication section 809 performs communication processing via a network such as the Internet. A drive 810 is also connected to I / O interface 805 as needed. A removable medium 811, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on drive 810 as needed so that computer programs read from it can be installed into storage section 808 as needed.

[0113] Specifically, according to embodiments of this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program including a computer program for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 809, and / or installed from removable medium 811. When the computer program is executed by central processing unit (CPU) 801, it performs various functions defined in the system of this application.

[0114] It should be noted that the computer-readable medium shown in the embodiments of this application can be a computer-readable signal medium or a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of a computer-readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, portable compact disc read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof. In this application, a computer-readable storage medium can be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device. In this application, a computer-readable signal medium can include a data signal propagated in baseband or as part of a carrier wave, carrying a computer-readable computer program. The transmitted data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. The computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted using any suitable medium, including but not limited to wireless, wired, etc., or any suitable combination thereof.

[0115] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. Each block in a flowchart or block diagram may represent a module, segment, or portion of code, which contains one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in a block diagram or flowchart, and combinations of blocks in a block diagram or flowchart, may be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0116] The units described in the embodiments of this application can be implemented in software or hardware, and the described units can also be located in a processor. The names of these units do not necessarily limit the specific unit itself.

[0117] Another aspect of this application provides a computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the steps and methods executed by the controller in the various embodiments described above.

[0118] According to one aspect of the embodiments of this application, a computer system is also provided, including a central processing unit (CPU), which can perform various appropriate actions and processes based on a program stored in read-only memory (ROM) or a program loaded from storage into random access memory (RAM), such as executing the steps and methods executed by the controller 103 described above. Various programs and data required for system operation are also stored in the RAM. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0119] The following components are connected to the I / O interface: input sections including keyboards, mice, etc.; output sections including cathode ray tubes (CRTs), liquid crystal displays (LCDs), and speakers; storage sections including hard drives; and communication sections including network interface cards such as LAN (Local Area Network) cards and modems. The communication sections perform communication processing via networks such as the Internet. Drives are also connected to the I / O interface as needed. Removable media, such as disks, optical discs, magneto-optical discs, semiconductor memories, etc., are installed on the drive as needed so that computer programs read from them can be installed into the storage section as required.

[0120] The above description is merely a preferred exemplary embodiment of this application and is not intended to limit the implementation of this application. Those skilled in the art can easily make corresponding modifications or alterations based on the main concept and spirit of this application. Therefore, the scope of protection of this application should be determined by the scope of protection claimed in the claims.

Claims

1. A tanker truck equipped with a pump, characterized in that, The pump-equipped tanker includes: A flow meter is used to monitor the liquid flow rate in the tanker truck with pump; A positioning device is used to determine the location information of the tanker truck with pumps. Pump gun sensing device, used to obtain the operating status of pump gun; The controller is configured to perform the following steps: Based on its own location information and the location information of the target storage tank, the relative positional distance between the pump truck and the target storage tank is calculated; If the relative position distance is detected to be less than the preset relative position distance and the amount of liquid in the pumped tanker decreases, it indicates that the pumped tanker is in the process of unloading liquid, and the pumped tanker is controlled to apply the parking brake. The system acquires the operating status of the pump nozzle. If the pump nozzle is not in operation and is in the process of unloading liquid, it is determined that there is a liquid leak or other malfunction, and the specific situation is analyzed. The acquisition of the operating status of the pump nozzle includes: if a movement trajectory of the pump nozzle is detected, it indicates that the pump nozzle is in operation; if no movement trajectory of the pump nozzle is detected, it indicates that the pump nozzle is not in operation.

2. The pump truck according to claim 1, characterized in that, The pump-equipped tanker truck includes: An identity information collection device is used to collect the operator's identity information; The controller is also configured to perform the following steps: In response to the instruction to perform the unloading operation, the identity information is matched with preset identity information to obtain the identity information matching result; If the identity information matching result indicates that the identity information is successfully matched, then the self-location information and the location information of the target storage tank are obtained.

3. The pump truck according to claim 2, characterized in that, The controller is also configured to perform the following steps: During the unloading operation, it is detected whether the decrease in liquid in the pumped tanker is less than the increase in liquid in the target storage tank. If the reduction is less than the increase, then the unloading operation is stopped.

4. The pump truck according to claim 2, characterized in that, The controller is also configured to perform the following steps: If the relative position distance is detected to be less than the preset relative position distance, and the operating status of the pump gun indicates that the pump gun is in operation, then the unloading operation is performed.

5. The pump truck according to claim 2, characterized in that, The pump-equipped tanker also includes: Gas detectors are used to collect the concentration of combustible gases. The controller is also configured to perform the following steps: Detect whether the concentration of the combustible gas is greater than a preset gas concentration; If the concentration of the combustible gas is detected to be greater than the preset gas concentration, the unloading operation shall be stopped.

6. The pump truck according to claim 5, characterized in that, The pump-equipped tanker also includes: An unloading pump is used to pump liquid from the storage tank with the pump truck to the target storage tank. A solenoid valve is used to control the flow rate of liquid pumped by the unloading pump; The controller is also configured to perform the following steps: If the concentration of the combustible gas is detected to be greater than the preset gas concentration, the solenoid valve is closed and the unloading pump is stopped.

7. The pump truck according to claim 6, characterized in that, The pump-equipped tanker also includes: An emergency switch is used to generate a shutdown command to close the solenoid valve and the unloading pump; The controller is also configured to perform the following steps: If the shutdown command is detected, the solenoid valve and the unloading pump are shut down.

8. The pump truck according to claim 5, characterized in that, The pump-equipped tanker also includes: Temperature sensor is used to collect the storage temperature in the liquid storage tank; The controller is also configured to perform the following steps: Detect whether the storage temperature exceeds a preset temperature threshold; If the storage temperature is detected to exceed the preset temperature threshold, the unloading operation will be stopped.

9. The tanker truck with pump according to any one of claims 2 to 8, characterized in that, The pump-equipped tanker also includes: Pressure sensor used to collect gas pressure in the storage tank; The controller is also configured to perform the following steps: Detect whether the gas pressure exceeds a preset pressure threshold; If the gas pressure is detected to exceed the preset pressure threshold, the unloading operation will be stopped.

10. The tanker truck with pump according to any one of claims 2 to 8, characterized in that, The pump-equipped tanker also includes: A collision sensor is used to collect the impact force experienced by the tanker truck with pump; The controller is also configured to perform the following steps: If the detected collision force is greater than the preset collision force, the unloading operation will be stopped.

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