Power supply control system, method, work machine, and electronic device

Abstract

The application relates to the field of power supply control, and provides a power supply control system, a power supply control method, a working machine and electronic equipment.The device comprises a first switch device, a second switch device and a control device; the first switch device is connected with the second switch device, the control device and a power supply device of the working machine; the control device is connected with the power supply device through the second switch device; the first switch device is used for outputting a power-off signal to the control device when being disconnected, and simultaneously controlling the power supply device to stop supplying power to the second switch device; the second switch device is used for controlling the first line between the power supply device and the control device to be disconnected in a time-delay manner when being powered off; and the control device is used for receiving the electric signal output by the first switch device in real time when the first line is turned on, and generating a power-off instruction based on the power-off signal and sending the power-off instruction to high-voltage electric equipment of the working machine if the electric signal is the power-off signal. The application can effectively avoid the damage of forced high voltage to the high-voltage relay and the high-voltage electric equipment.

Description

Technical Field

[0001] This invention relates to the field of power control technology, and in particular to a power control system, method, operating machinery, and electronic equipment. Background Technology

[0002] Operating machinery is usually equipped with a main power switch. After the machinery stops working, the main power switch can be turned off to disconnect the battery, preventing the machinery from failing to start due to a dead battery.

[0003] However, operator errors in operating the main power switch occur frequently. In addition, the main power switch is usually a mechanical rotary switch, which is difficult to guarantee the stability of when operating in harsh conditions such as mining areas. This can easily lead to the machine being forced to operate under high voltage when it is not properly set, which can damage the high voltage relays and high voltage electrical equipment of the machine and have a great impact on the normal operation of the machine. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] Therefore, the present invention provides a power control system, method, operating machinery, and electronic equipment.

[0006] This invention provides a power control system, comprising: a first switching device, a second switching device, and a control device; the first switching device is connected to the second switching device, the control device, and a power supply device for a working machine; the control device is connected to the power supply device via the second switching device.

[0007] The first switching device is used to output a power-down signal to the control device when it is disconnected, and at the same time, control the power supply device to stop supplying power to the second switching device;

[0008] The second switching device is used to control the first line between the power supply device and the control device to be delayed and disconnected when power is off;

[0009] The control device is used to receive the electrical signal output by the first switching device in real time when the first line is connected. If the electrical signal is the power-off signal, it generates a power-off command based on the power-off signal and sends it to the high-voltage electrical equipment of the working machinery. The high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-off command.

[0010] Preferably, the first switching device is further configured to output a power-on signal to the control device when closed, and simultaneously control the power supply device to supply power to the second switching device;

[0011] The second switching device is also used to control the first line to conduct when energized;

[0012] The control device is further configured to generate a wake-up command based on the power-on signal and send it to the high-voltage electrical equipment when the electrical signal is the power-on signal; the wake-up command is used to wake up the high-voltage electrical equipment.

[0013] Preferably, the first switching device is disposed on the second line, and the power supply device is connected to the signal input port of the control device and the second switching device respectively through the second line;

[0014] The first switching device is used to control the second line to be turned on when closed, and to control the second line to be turned off when open;

[0015] When the second line is turned on, it transmits the electrical energy output by the power supply device to the second switching device to power the second switching device. At the same time, it transmits the high-level signal of the preset port of the first switching device as the power-on signal to the signal input port of the control device. The preset port is the port away from the power supply device.

[0016] The second line is also used to stop transmitting electrical energy output from the power supply device to the second switching device when disconnected, and at the same time, transmit the low-level signal of the preset port of the first switching device as the power-off signal to the signal input port of the control device.

[0017] Preferably, the first line is further provided with a power distribution device, the input end of which is connected to the power supply device, and the first output end of which is connected to the power supply port of the control device;

[0018] The power distribution device is used to provide power protection to the control device when the first line is connected.

[0019] Preferably, the input terminal of the power distribution device is connected to the power supply device via the second switching device, and the second output terminal of the power distribution device is connected to the lighting device of the cab of the operating machinery.

[0020] Preferably, it further includes an alarm device, which is connected to the control device;

[0021] The control device is also used to acquire the key switch signal of the operating machinery, and based on the key switch signal, when it determines that the key switch of the operating machinery is switched to the OFF position, generate an alarm command and send it to the alarm device.

[0022] The present invention also provides a power control method, comprising:

[0023] When the first line between the power supply device and the control device of the operating machinery is connected, the control device receives an electrical signal output by the first switching device in real time; wherein, the control device is connected to the power supply device through a second switching device, and when the first switching device is disconnected, it outputs an electrical signal to the control device, and at the same time controls the power supply device to stop supplying power to the second switching device, and the second switching device controls the first line to disconnect after a delay when the power is cut off;

[0024] If the electrical signal is the power-down signal, the control device generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery; wherein, the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-down command.

[0025] Preferably, it further includes:

[0026] If the electrical signal is a power-on signal, the control device generates a wake-up command based on the power-on signal and sends it to the high-voltage electrical equipment; wherein, the wake-up command is used to wake up the high-voltage electrical equipment; the first switch device also outputs the power-on signal to the control device when closed, and at the same time controls the power supply device to supply power to the second switch device, and the second switch device controls the first line to be turned on when energized.

[0027] The present invention also provides a working machine, including a power control system as described in any of the above.

[0028] The present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the power control method as described above.

[0029] The power control system, method, operating machinery, and electronic equipment provided by this invention connect a first switching device to a second switching device, a control device, and the power supply device of the operating machinery, respectively. The control device is connected to the power supply device via the second switching device. When the first switching device is disconnected, it outputs a power-down signal to the control device and controls the power supply device to stop supplying power to the second switching device. When the second switching device is de-energized, it controls a delayed disconnection of the first line between the power supply device and the control device. When the first line is open, the control device receives the electrical signal output by the first switching device in real time. When the electrical signal is a power-down signal, it generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery to control the high-voltage electrical equipment to disconnect the corresponding high-voltage relay. Therefore, during the operation of the operating machinery, it can effectively prevent the operating machinery from being forced to operate at high voltage without proper voltage input due to misoperation or instability of the first switching device, thereby avoiding damage to the high-voltage relay and high-voltage electrical equipment caused by forced high voltage input. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the power control system of one embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the power control system of one embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the power control system of one embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the power control system of one embodiment of the present invention;

[0035] Figure 5 This is a schematic flowchart of a power control method according to an embodiment of the present invention;

[0036] Figure 6 This is a schematic diagram of the structure of the electronic device provided by the present invention;

[0037] Figure label:

[0038] 101: First switching device; 102: Second switching device; 103: Control device; 104: Power supply device; 201: Power distribution device; 301: Lighting device; 401: Alarm device; 601: Processor; 602: Communication interface; 603: Memory; 604: Communication bus. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0040] The following reference Figures 1 to 4 A power control system according to some embodiments of the present invention is described. For example... Figure 1As shown, a power control system according to an embodiment of the present invention includes at least: a first switching device 101, a second switching device 102, and a control device 103; the first switching device 101 is connected to the second switching device 102, the control device 103, and the power supply device 104 of the working machine, respectively; the control device 103 is connected to the power supply device 104 through the second switching device 102.

[0041] The first switching device 101 is used to output a power-down signal to the control device 103 when it is disconnected, and at the same time, control the power supply device 104 to stop supplying power to the second switching device 102;

[0042] The second switching device 102 is used to control the first line between the power supply device 104 and the control device 103 to be delayed and disconnected when the power is off.

[0043] The control device 103 is used to receive the electrical signal output by the first switching device 101 in real time when the first line is connected. If the electrical signal is the power-off signal, it generates a power-off command based on the power-off signal and sends it to the high-voltage electrical equipment of the working machinery. The high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-off command.

[0044] In this embodiment, the operating machinery includes construction machinery such as electric dump trucks and electric excavators. The power supply device 104 supplies power to the second switching device 102 and the control device 103, and also provides low-voltage electricity to the operating machinery. The power control system controls the power supply device 104 to start and stop supplying power. The control device 103 can be a newly added controller or the operating machinery's own controller, such as a vehicle controller; the specific configuration can be determined according to actual needs.

[0045] The first switching device 101 is electrically connected to the power supply device 104, the second switching device 102, and the control device 103. The control device 103 is electrically connected to the power supply device 104 through the second switching device 102.

[0046] When the first switching device 101 is disconnected, it controls the power supply device 104 to stop supplying power to the second switching device 102, and simultaneously outputs a power-off signal to the control device 103. For example, the first switching device can be a physical switch such as a rocker switch or a push-button switch, or it can be an electronic device such as a controller. The operator can input the switching control signal to the power supply device 104 through the first switching device 101.

[0047] The second switching device 102 is installed on the first line between the power supply device 104 and the control device 103. When power is off, the second switching device 102 can delay disconnecting for a preset time to control the first line to disconnect for the same preset time. The preset time is greater than or equal to the duration during which the control device 103 generates and sends the power-off command; for example, it can be set to 15 seconds. Simultaneously, when power is restored, the second switching device 102 can control the first line to conduct. For example, the second switching device can be an active switch such as a time-delay relay.

[0048] When the first line is in a conducting state, the power supply device 104 supplies power to the control device 103, which is in operation and receives the electrical signal output by the first switching device 101 in real time. If the electrical signal output by the first switching device 101 is a power-down signal, the control device 103 generates a power-down command based on the power-down signal and sends it to each high-voltage electrical device of the operating machinery, such as the water-cooled unit, the three-in-one controller, and the high-voltage box. For any high-voltage electrical device, upon receiving the power-down command, it can disconnect the corresponding high-voltage relay based on the power-down command, thereby completing the normal high-voltage reduction of the high-voltage electrical device.

[0049] In practical applications, when the first switch 101 is disconnected, the power supply device 104 stops supplying power to the second switch 102. The second switch 102 is de-energized and controls the first line to disconnect after a preset delay, ensuring that the power supply device 104 can continue to supply power to the control device 103 for a certain period of time when the first switch 101 is disconnected. Simultaneously, when the first switch 101 is disconnected, a power-down signal is also output to the control device 103. Thus, the control device 103 can generate a power-down command within the preset time and send it to the high-voltage electrical equipment of the working machinery, ensuring that each high-voltage electrical equipment is properly powered down. Therefore, during the operation of the working machinery, it effectively avoids situations where the first switch 101 is misoperated or unstable, causing the working machinery to be forced to power down without actually powering down, thereby preventing damage to the high-voltage relays and high-voltage electrical equipment caused by forced power down.

[0050] In an exemplary embodiment, the first switching device 101 is further configured to output a power-on signal to the control device 103 when closed, and simultaneously control the power supply device 104 to supply power to the second switching device 102;

[0051] The second switching device 102 is also used to control the first line to conduct when energized;

[0052] The control device 103 is further configured to generate a wake-up command based on the power-on signal and send it to the high-voltage electrical equipment when the electrical signal is the power-on signal; the wake-up command is used to wake up the high-voltage electrical equipment.

[0053] In this embodiment, when the first switch device 101 is closed, it outputs a power-on signal to the control device 103. At the same time, it also controls the power supply device 104 to supply power to the second switch device 102, so that the second switch device 102 is energized and closed, thereby controlling the first line to be connected.

[0054] When the first line is connected, the power supply device 104 supplies power to the control device 103, enabling the control device 103 to operate and receive electrical signals output by the first switching device 101 in real time. If the electrical signal output by the first switching device 101 is a power-on signal, the control device 103 generates a wake-up command based on the power-on signal and sends it to each high-voltage electrical device of the operating machinery to wake up the high-voltage electrical devices. Thus, when the key switch is switched from the OFF position to the Ready position, the high-voltage electrical devices can be connected to the high-voltage electrical devices. Therefore, when the first switching device 101 is closed, the high-voltage electrical devices of the operating machinery can be connected to the high-voltage electrical devices normally, ensuring the normal operation of the operating machinery.

[0055] In an exemplary embodiment, the first switching device 101 is disposed on the second line, and the power supply device 104 is connected to the signal input port of the control device 103 and the second switching device 102 respectively through the second line;

[0056] The first switching device 101 is used to control the second line to be turned on when closed, and to control the second line to be turned off when open;

[0057] When the second line is turned on, it transmits the electrical energy output by the power supply device 104 to the second switching device 102 to power the two switching devices. At the same time, it transmits the high-level signal of the preset port of the first switching device 101 as the power-on signal to the signal input port of the control device 103. The preset port is the port away from the power supply device 104.

[0058] The second line is also used to stop transmitting electrical energy output from the power supply device 104 to the second switching device 102 when disconnected, and at the same time, transmit the low-level signal of the preset port of the first switching device 101 as the power-off signal to the signal input port of the control device 103.

[0059] In this embodiment, the control device 103 includes a signal input port for receiving electrical signals output by the first switching device 101, such as power-on signals and power-off signals. The second switching device 102 may include a first port, a second port, and a third port. The first port is connected to the power supply device 104 via a second line for supplying power to the second switching device 102 via the power supply device 104. The second port and the third port are both located on the first line for controlling the first line to conduct when powered on and to control the first line to disconnect for a preset time when powered off. The power supply device 104 is also connected to the signal input port of the control device 103 via the second line to input electrical signals to the control device 103 via the second line.

[0060] The first switching device 101 may include two ports, both of which are located on the second line. Specifically, one port is connected to the power supply device 104, and the other port is connected to the first port of the second switching device 102 and the signal input port of the control device 103, for controlling the on / off state of the second line. The preset port of the first switching device 101 is the port that is furthest from the power supply device 104.

[0061] In practical applications, when the first switch 101 is closed, the second line is activated, and the electrical energy output by the power supply device 104 is transmitted through the second line to the first port of the second switch 102 to power the second switch 102. Simultaneously, the preset port of the first switch 101 is set to a high-level signal, which is output as a power-on signal to the signal input port of the control device 103 via the second line. When the second switch 102 is energized and closed, it controls the first line to activate, supplying power to the control device 103 via the power supply device 104. This puts the control device 103 into operation, allowing it to receive the electrical signal output by the first switch 101 in real time, and generate a wake-up command when the electrical signal is a power-on signal, sending it to the high-voltage electrical equipment to activate it.

[0062] When the first switch 101 is disconnected, the second line is disconnected, and the electrical energy output by the power supply device 104 stops being transmitted to the first port of the second switch 102 through the second line, thus stopping the power supply to the second switch 102. Simultaneously, the preset port of the first switch 101 is set to a low-level signal, and this low-level signal is output as a power-down signal to the signal input port of the control device 103 through the second line. The second switch 102 is de-energized and disconnects after a preset time delay, thereby controlling the first line to disconnect after a preset time delay. That is, the power supply device 104 continues to supply power to the control device 103 for a preset time when the first switch 101 is disconnected, ensuring that the control device 103 remains operational for the preset time after the first switch 101 is disconnected. It receives the electrical signal output by the first switch 101 in real time, and when the electrical signal is a power-down signal, generates a power-down command and sends it to the high-voltage equipment. This causes the high-voltage equipment to disconnect the corresponding high-voltage relay, preventing damage to the high-voltage relay and high-voltage equipment caused by forcibly lowering the high voltage before it is actually lowered. The control result is highly reliable and has a simple structure.

[0063] In an exemplary embodiment, such as Figure 2 As shown, a power distribution device 201 is also provided on the first line. The input end of the power distribution device 201 is connected to the power supply device 104, and the first output end of the power distribution device 201 is connected to the power supply port of the control device 103.

[0064] The power distribution device 201 is used to provide power protection for the control device 103 when the first line is connected.

[0065] In this embodiment, the power distribution device 201 can be the power distribution device 201 of the working machinery itself, such as the vehicle's power distribution box, or it can be a newly added power distribution device 201, which can be set according to actual needs. The power distribution device 201 can include an input terminal and one or more output terminals for providing power supply protection to the electrical equipment connected to each output terminal. For example, the power distribution device 201 can include multiple fuse devices, such as fuses, corresponding one-to-one with each output terminal.

[0066] In practical applications, the power distribution device 201 may include an input terminal and a first output terminal. The input terminal of the power distribution device 201 is electrically connected to the power supply device 104, and the first output terminal of the power distribution device 201 is electrically connected to the power supply port of the control device 103. The second switch device 102 may be located between the power supply device 104 and the power distribution device 201, or between the power distribution device 201 and the control device 103. Thus, when the second switch device 102 is closed, the power distribution device 201 can provide power supply protection to the control device 103, preventing damage to the control device 103 due to short circuits, overvoltage, etc., thereby improving the reliability of the wake-up control and power-down control results of high-voltage electrical equipment. It should be noted that... Figure 2 The example only uses the second switching device 102 located between the power supply device 104 and the power distribution device 201.

[0067] In an exemplary embodiment, such as Figure 3 As shown, the input terminal of the power distribution device 201 is connected to the power supply device 104 through the second switch device 102, and the second output terminal of the power distribution device 201 is connected to the lighting device 301 of the cab of the operating machinery.

[0068] In this embodiment, the input terminal of the power distribution device 201 is electrically connected to the power supply device 104 through the second switch device 102. That is, the second switch device 102 is located between the power distribution device 201 and the power supply device 104. When the second switch device 102 is closed, the power supply device 104 can supply power to the electrical equipment connected to each output terminal of the power distribution device 201. When the second switch device 102 is open, the power supply device 104 stops supplying power to all electrical equipment connected to the output terminals of the power distribution device 201. This effectively controls the power supply device 104 to stop outputting power after the second switch device 102 is opened, preventing the power supply device 104 from affecting the power supply of the working machinery.

[0069] In practical applications, the power distribution device 201 may also include a second output terminal, which is electrically connected to the lighting device 301 in the cab of the operating machinery. This allows the operating machinery to provide lighting to the cab for a preset duration even when the first switch 101 is misoperated or unstable and disconnected during nighttime operation, thus meeting the lighting requirements of the operators. The lighting device 301 can be a reading light.

[0070] Meanwhile, existing power switches are prone to jamming under extreme operating conditions, causing the operating machinery to be unable to power on or off normally, affecting its normal use. In this embodiment, the first switch device 101 can be installed in the cab. For example, the first switch device 101 can be a rocker switch and installed on the center console of the cab, thereby effectively preventing the first switch device 101 from jamming under extreme operating conditions and reducing the impact of operating conditions on the working stability of the first switch device 101. In addition, by placing the second switch device 102 between the input end of the power distribution device 201 and the power supply device 104, and connecting the second output end of the power distribution device 201 to the lighting device 301 in the cab, the cab can still be illuminated for a preset time after the operator finishes work and controls the first switch device 101 to turn off, meeting the lighting needs of the operator to "accompany you off the vehicle" and improving the user experience.

[0071] In an exemplary embodiment, such as Figure 4 As shown, it also includes an alarm device 401, which is connected to the control device 103;

[0072] The control device 103 is also used to acquire the key switch signal of the operating machinery, and based on the key switch signal, when it determines that the key switch of the operating machinery is switched to the OFF position, generate an alarm command and send it to the alarm device 401.

[0073] In this embodiment, the alarm device 401 is used to remind the operator to disconnect the first switch device 101 in time. It can be a display device of the working machinery, such as a central control display screen, or a voice alarm or a buzzer alarm.

[0074] When the first circuit is connected, the control device 103 is also used to acquire the key switch signal of the working machine in real time, and determine whether the key switch of the working machine is switched to the OFF position based on the key switch signal, for example, from the Ready position to the OFF position, or from the ON position to the OFF position; if the key switch is switched to the OFF position, it indicates that the working machine has completed the work. At this time, the control device 103 can generate an alarm command and send it to the alarm device 401. For example, the alarm information can be displayed through a display device, or a voice alarm can be made through a voice alarm, or a buzzer alarm can be made to remind the operator to turn off the first switch device 101 in time to avoid the power supply device 104 from affecting the power supply of the working machine.

[0075] It is understandable that after the control device 103 sends an alarm command to the alarm device 401, it can be configured to control the alarm device 401 to stop the alarm when it receives a power-down signal; it can also be configured to automatically stop the alarm when the duration of executing the alarm command reaches a specified duration; or it can be configured to stop the alarm in response to a shutdown operation.

[0076] In related technologies, operators often forget to turn off the main power switch after finishing the work of the machinery. In addition, due to different operating habits of different operators, some operators do not have the habit of turning off the main power switch after finishing the work of the machinery, which causes the power supply device 104 to remain in working state, which can easily cause the power supply device 104 to be powered off and affect the normal operation of the machinery.

[0077] In this embodiment, the control device 103 obtains the key switch signal of the working machine, and generates an alarm command and sends it to the alarm device 401 when the key switch of the working machine is switched to the OFF position based on the key switch signal, so as to remind the operator to turn off the first switch device 101 in time, thereby effectively reducing the risk of power failure of the power supply device 104 and ensuring the normal operation of the working machine.

[0078] The power control method provided by this invention will be described below. The power control method described below is based on the power control system described above, and the two can be referred to in correspondence. Figure 5 As shown, the power control method of the present invention includes at least:

[0079] S501. When the first line between the power supply device and the control device of the working machinery is connected, the control device receives an electrical signal output by the first switching device in real time; wherein, the control device is connected to the power supply device through a second switching device, and when the first switching device is disconnected, it outputs an electrical signal to the control device, and at the same time controls the power supply device to stop supplying power to the second switching device, and when the second switching device is de-energized, it controls the first line to disconnect after a delay.

[0080] S502. If the electrical signal is the power-down signal, the control device generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery; wherein, the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-down command.

[0081] In an exemplary embodiment, it also includes:

[0082] If the electrical signal is a power-on signal, the control device generates a wake-up command based on the power-on signal and sends it to the high-voltage electrical equipment; wherein, the wake-up command is used to wake up the high-voltage electrical equipment; the first switch device also outputs the power-on signal to the control device when closed, and at the same time controls the power supply device to supply power to the second switch device, and the second switch device controls the first line to be turned on when energized.

[0083] In an exemplary embodiment, when the second line is on, it transmits the electrical energy output by the power supply device to the second switching device to power the second switching device. Simultaneously, it transmits a high-level signal from a preset port of the first switching device as the power-on signal to the signal input port of the control device. The preset port is a port located away from the power supply device. The first switching device is disposed on the second line, and the power supply device is connected to both the signal input port of the control device and the second switching device via the second line. The first switching device is used to control the second line to be on when closed and to control the second line to be on when open.

[0084] When the second line is disconnected, the power output from the power supply device is stopped from being transmitted to the second switching device. At the same time, the low-level signal of the preset port of the first switching device is transmitted to the signal input port of the control device as the power-off signal.

[0085] In an exemplary embodiment, it also includes:

[0086] When the first line is conducting, the control device is powered and protected by a power distribution device; wherein, the power distribution device is installed on the first line, the input end of the power distribution device is connected to the power supply device, and the first output end of the power distribution device is connected to the power supply port of the control device.

[0087] In an exemplary embodiment, the input terminal of the power distribution device is connected to the power supply device via the second switching device, and the second output terminal of the power distribution device is connected to the lighting device in the cab of the operating machinery.

[0088] In an exemplary embodiment, it also includes:

[0089] The control device acquires the key switch signal of the operating machinery, and when it determines that the key switch of the operating machinery is switched to the OFF position based on the key switch signal, it generates an alarm command and sends it to the alarm device.

[0090] The present invention also provides a working machine, including a power control system as described in any of the above embodiments.

[0091] In this embodiment, the operating machinery includes construction machinery such as electric dump trucks and electric excavators.

[0092] Figure 6 An example is a schematic diagram of the physical structure of an electronic device, such as... Figure 6 As shown, the electronic device may include: a processor 601, a communication interface 602, a memory 603, and a communication bus 604, wherein the processor 601, the communication interface 602, and the memory 603 communicate with each other through the communication bus 604. The processor 601 can call logical instructions in the memory 603 to execute a power control method, which includes: when a first line between the power supply device and the control device of the working machinery is connected, the control device receives an electrical signal output by a first switching device in real time; wherein the control device is connected to the power supply device through a second switching device, the first switching device outputs a power signal to the control device when it is disconnected, and simultaneously controls the power supply device to stop supplying power to the second switching device; the second switching device controls the first line to disconnect after a delay when power is cut off.

[0093] If the electrical signal is the power-down signal, the control device generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery; wherein, the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-down command.

[0094] Furthermore, the logical instructions in the aforementioned memory 603 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0095] On the other hand, the present invention also provides a computer program product, the computer program product including a computer program stored on a non-transitory computer-readable storage medium, the computer program including program instructions, when the program instructions are executed by a computer, the computer is able to execute the power control method provided by the above methods, the method including: when a first line between the power supply device and the control device of the working machinery is connected, the control device receives an electrical signal output by a first switching device in real time; wherein, the control device is connected to the power supply device through a second switching device, the first switching device outputs an electrical signal to the control device when it is disconnected, and simultaneously controls the power supply device to stop supplying power to the second switching device, and the second switching device controls the first line to disconnect after a delay when power is cut off;

[0096] If the electrical signal is the power-down signal, the control device generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery; wherein, the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-down command.

[0097] In another aspect, the present invention also provides a non-transitory computer-readable storage medium storing a computer program thereon, which, when executed by a processor, is implemented to perform the power control methods provided above. The method includes: when a first line between a power supply device and a control device of a working machine is connected, the control device receives an electrical signal output by a first switching device in real time; wherein the control device is connected to the power supply device through a second switching device, the first switching device outputs an electrical signal to the control device when it is disconnected, and simultaneously controls the power supply device to stop supplying power to the second switching device, and the second switching device controls the first line to disconnect after a delay when power is cut off;

[0098] If the electrical signal is the power-down signal, the control device generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery; wherein, the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-down command.

[0099] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0100] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power supply control system, characterized in that, include: A first switching device, a second switching device, and a control device; the first switching device is connected to the second switching device, the control device, and the power supply device of the working machinery, respectively; The control device is connected to the power supply device via the second switching device. The first switching device is used to output a power-down signal to the control device when it is disconnected, and at the same time, control the power supply device to stop supplying power to the second switching device; The second switching device is used to control the first line between the power supply device and the control device to be delayed and disconnected when power is off; The control device is used to receive an electrical signal output by the first switching device in real time when the first line is connected; if the electrical signal is the power-off signal, it generates a power-off command based on the power-off signal and sends it to the high-voltage electrical equipment of the working machinery; the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-off command. The first switching device is also used to output a power-on signal to the control device when closed, and at the same time control the power supply device to supply power to the second switching device; The second switching device is also used to control the first line to conduct when energized; The control device is further configured to generate a wake-up command based on the power-on signal and send it to the high-voltage electrical equipment when the electrical signal is the power-on signal; the wake-up command is used to wake up the high-voltage electrical equipment.

2. The power control system according to claim 1, characterized in that, The first switching device is mounted on the second line, and the power supply device is connected to the signal input port of the control device and the second switching device respectively through the second line; The first switching device is used to control the second line to be turned on when closed, and to control the second line to be turned off when open; When the second line is turned on, it transmits the electrical energy output by the power supply device to the second switching device to power the second switching device. At the same time, it transmits the high-level signal of the preset port of the first switching device as the power-on signal to the signal input port of the control device. The preset port is a port that is far away from the power supply device; The second line is also used to stop transmitting electrical energy output from the power supply device to the second switching device when disconnected, and at the same time, transmit the low-level signal of the preset port of the first switching device as the power-off signal to the signal input port of the control device.

3. The power control system according to any one of claims 1 to 2, characterized in that, The first line is also equipped with a power distribution device, the input end of which is connected to the power supply device, and the first output end of which is connected to the power supply port of the control device. The power distribution device is used to provide power protection to the control device when the first line is connected.

4. The power control system according to claim 3, characterized in that, The input terminal of the power distribution device is connected to the power supply device via the second switching device, and the second output terminal of the power distribution device is connected to the lighting device in the cab of the operating machinery.

5. The power control system according to any one of claims 1 to 2, characterized in that, It also includes an alarm device, which is connected to the control device; The control device is also used to acquire the key switch signal of the operating machinery, and based on the key switch signal, when it determines that the key switch of the operating machinery is switched to the OFF position, generate an alarm command and send it to the alarm device.

6. A power supply control method, characterized in that, include: When the first line between the power supply device and the control device of the operating machinery is connected, the control device receives an electrical signal output by the first switching device in real time; wherein, the control device is connected to the power supply device through a second switching device, and when the first switching device is disconnected, it outputs an electrical signal to the control device, and at the same time controls the power supply device to stop supplying power to the second switching device, and the second switching device controls the first line to disconnect after a delay when the power is cut off; If the electrical signal is the power-down signal, the control device generates a power-down command based on the power-down signal and sends it to the high-voltage electrical equipment of the operating machinery; wherein, the high-voltage electrical equipment is used to disconnect the corresponding high-voltage relay based on the power-down command; If the electrical signal is a power-on signal, the control device generates a wake-up command based on the power-on signal and sends it to the high-voltage electrical equipment; wherein, the wake-up command is used to wake up the high-voltage electrical equipment; the first switch device also outputs the power-on signal to the control device when closed, and at the same time controls the power supply device to supply power to the second switch device, and the second switch device controls the first line to be turned on when energized.

7. A type of operating machinery, characterized in that, Includes the power control system as described in any one of claims 1 to 5.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the power control method as described in claim 6.

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