Delay power-on control circuit and control method

Abstract

The invention discloses a delayed power-on control circuit and a control method, which are applied to the technical field of power supply of electronic equipment. Wherein the insertion process detection device is connected with a socket and is used for acquiring an insertion process between a plug and the socket; the delay device is connected with the insertion process detection device and the power distribution unit, and is used for determining delay control time according to the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and executing corresponding delay operation according to the delay control time; the relay is connected with the time-delay device, and a contact of the relay is arranged on a live wire of a plug branch path in the socket and used for controlling the relay to be powered on or powered off after the time-delay operation is executed so as to control the live wire to be switched on or switched off. Therefore, the synchronism of the current action and the plugging action in the circuit is reduced through the time delay device, the plugging process detection device and the relay, so that the probability of arc sparking is reduced, and the safety of equipment in use is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electronic equipment power supply, and in particular to a delayed power-on control circuit and a control method. Background Art

[0002] In the field of electronic equipment, intelligent power distribution units (PDUs) are usually used for power supply. The current PDU system can usually only perform conventional information monitoring and power on and off operations. However, during the process of plugging and unplugging the power supply in the electronic equipment, arcing is easily caused by the shaking of the power cord, and the arcing phenomenon may cause abnormal input electromagnetic interference (EMI) to the power module of the electronic equipment, thereby burning the power module.

[0003] At present, the method of installing the machine and plugging in the power cord first, and then powering on the PDU is usually adopted to avoid EMI interference caused by plugging and unplugging the power cord to the power module. However, for electronic equipment that is already running, if this method works together with a redundant power module, the process of plugging and unplugging the power supply cannot be avoided, so it will bring unavoidable damage risks to the electronic equipment.

[0004] It can be seen that how to avoid interference to the power module caused by the process of inserting and removing the power supply is a problem that needs to be solved by those skilled in the art. Summary of the invention

[0005] The purpose of the embodiments of the present invention is to provide a delayed power-on control circuit and a control method, which can solve the electromagnetic interference problem caused to the power module by the power plug-in and pull-out process in the prior art.

[0006] In order to solve the above technical problems, on the one hand, an embodiment of the present invention provides a delayed power-on control circuit, comprising: a relay, a delay device, an insertion process detection device and a power distribution unit;

[0007] Wherein, the insertion process detection device is connected to the socket and is used to obtain the insertion process between the plug and the socket;

[0008] The delay device is connected to the insertion process detection device and the power distribution unit, and is used to determine the delay control time according to the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and perform a corresponding delay operation according to the delay control time;

[0009] The relay is connected to the delay device, and the contacts of the relay are arranged on the live wire of the plug branch path in the socket, which is used to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire.

[0010] In some embodiments, the delay device includes: a communication micro control unit and a delay timer;

[0011] The communication microprocessor unit is respectively connected to the insertion process detection device, the power distribution unit and the delay timer, and is used to obtain the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and decode the coding information to obtain the delay control time corresponding to the coding information; when it is determined that the insertion process meets the triggering requirements, the delay timer is triggered to perform a corresponding delay operation according to the delay control time;

[0012] The delay timer is connected to the relay and is used to control the energization or de-energization of the relay after the delay operation is performed.

[0013] In some embodiments, the insertion process detection device includes: a sliding resistor, a pull-up resistor, and a current limiting resistor;

[0014] Wherein, the first end of the sliding rheostat is connected to the delay device and the first end of the current limiting resistor, the second end of the sliding rheostat is connected to the pull-up resistor, and the sliding end of the sliding rheostat is connected to the socket;

[0015] The second end of the current limiting resistor is grounded.

[0016] In some embodiments, the power distribution unit includes: a distribution unit processor, a power management chip, a transistor, a comparator, a first resistor, a second resistor, a third resistor, a first capacitor, and a second capacitor;

[0017] Wherein, the output end of the distribution unit processor is connected to the input end of the power management chip;

[0018] The input end of the allocation unit processor is connected to the emitter of the triode, the first end of the first resistor, the first end of the second resistor and the first end of the first capacitor;

[0019] The output end of the power management chip is connected to the second end of the first resistor and the first end of the second resistor;

[0020] The second end of the second resistor is connected to the first end of the third resistor and the first input end of the comparator;

[0021] The second end of the third resistor is connected to the first end of the second capacitor;

[0022] The second input terminal of the comparator is connected to the output terminal of the comparator and the input terminal of the delay device;

[0023] The output end of the delay device is connected to the base of the transistor;

[0024] The collector of the transistor, the second end of the first capacitor and the second end of the second capacitor are all grounded.

[0025] In some embodiments, the power distribution unit further includes: a fourth resistor, a fifth resistor and a third capacitor;

[0026] Wherein, a first end of the fourth resistor is connected to an input end of the allocation unit processor;

[0027] The second end of the fourth resistor is connected to the first end of the fifth resistor, the first end of the second resistor, the first end of the first capacitor, the first end of the first resistor, the second end of the first resistor, the output end of the power management chip and the emitter of the transistor;

[0028] The second end of the fifth resistor is connected to the first end of the third capacitor;

[0029] A second terminal of the third capacitor is grounded.

[0030] On the other hand, the present invention further provides an electronic device, comprising the above-mentioned delayed power-on control circuit.

[0031] On the other hand, the present invention further provides a control method of a time-delay power-on control circuit, which is applied to the above-mentioned time-delay power-on control circuit, comprising:

[0032] Acquiring the insertion progress between the plug and the socket determined based on the insertion progress detection device;

[0033] Obtaining coding information determined by a power distribution unit according to a power supply demand of a load;

[0034] The delay control time is determined according to the insertion process and the coding information, and the corresponding delay operation is performed according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire.

[0035] In some embodiments, the delay device includes: a communication micro control unit and a delay timer, which determines the delay control time according to the insertion process and the coding information, and performs a corresponding delay operation according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire, including:

[0036] The communication micro control unit is used to decode the coded information to obtain the delay control time corresponding to the coded information; and to determine whether the insertion process meets the triggering requirements;

[0037] When the insertion length corresponding to the insertion process meets the preset length requirement, and the insertion time corresponding to the insertion process meets the preset time requirement, it is determined that the insertion process meets the trigger requirement;

[0038] If the insertion process meets the triggering requirements, the trigger delay timer performs the corresponding delay operation according to the delay control time, so as to control the power on or off of the relay after the delay operation is completed, thereby controlling the conduction or disconnection of the live wire.

[0039] In some embodiments, it also includes:

[0040] The delay control time is uploaded to the power distribution unit so that the power distribution unit can determine whether the delay control time meets the delay time standard according to the power supply demand.

[0041] In some embodiments, it also includes:

[0042] Determining whether the signal sent by the power distribution unit is a communication signal;

[0043] If the signal sent by the power distribution unit is a communication signal, the coding information is determined according to the information represented in the communication signal;

[0044] If the signal sent by the power distribution unit is a power supply signal, its own power demand is met according to the power supply signal.

[0045] On the other hand, the present invention also provides a control device for a delayed power-on control circuit, comprising:

[0046] Memory for storing computer programs;

[0047] The processor is used to execute the computer program to implement the steps of the control method of the delayed power-on control circuit.

[0048] On the other hand, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the steps of the control method of the above-mentioned delayed power-on control circuit are implemented.

[0049] On the other hand, the present invention further provides a computer program product, comprising a computer program / instruction, which implements the steps of the control method of the above-mentioned delayed power-on control circuit when executed by a processor.

[0050] It can be seen from the above technical scheme that the present invention provides a delayed power-on control circuit, including: a relay, a delay device, an insertion process detection device and a power distribution unit; wherein the insertion process detection device is connected to the socket, and is used to obtain the insertion process between the plug and the socket; the delay device is connected to the insertion process detection device and the power distribution unit, and is used to determine the delay control time according to the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and perform the corresponding delay operation according to the delay control time; the relay is connected to the delay device, and the contacts of the relay are set on the live wire of the plug branch path in the socket, and are used to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire. It can be seen that the delay power-on control circuit provided by the present invention reduces the synchronization of the current action in the circuit and the action between the plug and the socket through the delay device, the insertion process detection device and the relay, thereby reducing the probability of arc ignition, and thus improving the safety of electronic equipment during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0052] Figure 1 A structural diagram of a delayed power-on control circuit provided by an embodiment of the present invention;

[0053] Figure 2 A structural diagram of a delay device provided by an embodiment of the present invention;

[0054] Figure 3 A structural diagram of an insertion process detection device provided by an embodiment of the present invention;

[0055] Figure 4 A first schematic diagram of a plug provided in an embodiment of the present invention;

[0056] Figure 5 A second schematic diagram of a plug provided in an embodiment of the present invention;

[0057] Figure 6 A structural diagram of a power distribution unit provided in an embodiment of the present invention;

[0058] Figure 7 A schematic diagram of the hardware structure provided by an embodiment of the present invention;

[0059] Figure 8 A flow chart of a control method for a delayed power-on control circuit provided by an embodiment of the present invention;

[0060] Fig. 9 A control workflow diagram of a delay device provided by an embodiment of the present invention;

[0061] Fig.10 A flowchart of the judgment process of the delay device provided by the embodiment of the present invention;

[0062] Fig.11 A structural diagram of a control device for a delayed power-on control circuit provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] The terms "including" and "having" in the specification of the present invention and the above-mentioned drawings, as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but may include steps or units that are not listed.

[0065] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0066] Next, a delayed power-on control circuit provided by an embodiment of the present invention is described in detail. Figure 1 A structural diagram of a delayed power-on control circuit provided by an embodiment of the present invention, such as Figure 1 As shown, the delayed power-on control circuit includes: a relay K, a delay device 1, an insertion process detection device 2 and a power distribution unit 3. In addition, Figure 1 The structure diagram shown also includes: a socket 4. The connection relationship of its delayed power-on control circuit is: the insertion process detection device 2 is connected to the socket 4; the delay device 1 is connected to the insertion process detection device 2 and the power distribution unit 3; the relay K is connected to the delay device 1, and the contact of the relay K is set on the live wire of the plug branch path in the socket 4.

[0067] In a specific embodiment, when the plug is plugged in or out of the socket 4, since the insertion process detection device 2 is connected to the socket 4, the insertion process detection device 2 can determine the insertion process between the plug and the socket 4 according to the internal situation of the socket 4, and send the insertion process to the delay device 1 connected to the insertion process detection device 2; the power distribution unit 3 can obtain the coding information representing the delay control time according to the power supply demand of the connected load, and send the coding information to the delay device 1 connected to the power distribution unit 3; at this time, the delay device 1 includes the insertion process and the coding information, firstly decodes the coding information to obtain the corresponding delay control time, after the insertion process meets the triggering requirements, the delay device 1 triggers the corresponding delay operation (for example: delay for a period of time), after the delay operation, the delay device 1 controls the power on or off of the relay K, and the contacts of the relay K are set on the live wire, so that the power on or off of the relay K controls the on and off of the live wire in the entire circuit. In simple terms, when it is detected that the plug has been inserted to a certain depth, the conditions for safe power-on are met, the delay device 1 is triggered, and after a certain period of time, the relay K is connected to the power supply and the power-on action can be performed; after the plug is pulled out, the current pull-out path may not have completely cut off the power supply. At this time, in order to prevent the occurrence of sparks again in a critical state, the power-off operation of relay K is performed first. After a certain period of delay, if no new insertion action is detected, the circuit will no longer be connected.

[0068] Among them, before the plug is inserted into the socket 4, the relay K ensures that the live wire is disconnected. At this time, when the plug is inserted into the socket 4 and the insertion process meets the triggering requirements, after a certain delay control time, the relay K ensures that the live wire is turned on, thereby realizing the conduction of the entire circuit; when the plug is unplugged from the socket 4, it indicates to a certain extent that the electronic device is currently in normal operation. Therefore, the relay K at this time ensures that the live wire is turned on. When the plug is unplugged from the socket 4 and the insertion process meets the triggering requirements, the relay K first ensures that the live wire is disconnected.

[0069] It should be noted that the triggering requirements that need to be met when the plug is inserted into the socket 4 or when the plug is pulled out of the socket are generally divided into length conditions and time conditions, which are used to determine whether the plug is in place and whether there is a dwell time, but the specific values ​​for the insertion action and the pull-out action are different. For example: the plug is a plug with a spring structure as an example. When the plug is inserted into the socket 4, the spring structure in the plug changes from a normal state to a compressed state. At this time, if the triggering condition is to be met, the length condition at this time needs to be determined whether the length of the spring in the plug reaches the compression limit. If so, it is determined that the length condition is met in the current situation. After the length condition is met, the time when the current length condition is met is determined. If there is no other plug-in action within the preset time, it is determined that the time condition at this time is met; when the plug is pulled out of the socket 4, the spring structure in the plug changes from a compressed state to a normal state. At this time, if the triggering condition is to be met, the conditional length condition at this time needs to be determined whether the length of the spring in the plug is greater than the compression limit. If so, it is determined that the length condition is met in the current situation. After the length condition is met, the time when the current length condition is met is determined. If there is no other plug-in action within the preset time, it is determined that the time condition at this time is met.

[0070] It can be seen from the above technical scheme that the present invention provides a delayed power-on control circuit, including: a relay, a delay device, an insertion process detection device and a power distribution unit; wherein the insertion process detection device is connected to the socket, and is used to obtain the insertion process between the plug and the socket; the delay device is connected to the insertion process detection device and the power distribution unit, and is used to determine the delay control time according to the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and perform the corresponding delay operation according to the delay control time; the relay is connected to the delay device, and the contacts of the relay are set on the live wire of the plug branch path in the socket, and are used to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire. It can be seen that the delay power-on control circuit provided by the present invention reduces the synchronization of the current action in the circuit and the action between the plug and the socket through the delay device, the insertion process detection device and the relay, thereby reducing the probability of arc ignition, and thus improving the safety of electronic equipment during use.

[0071] In some embodiments, Figure 2 As shown, the delay device 1 includes: a communication micro-control unit 11 and a delay timer 12. The connection relationship of the internal components of the delay device 1 is: the communication micro-processing unit 11 is connected to the insertion process detection device 2, the power distribution unit 3 and the delay timer 12 respectively; the delay timer 12 is connected to the relay K.

[0072] In the embodiment, the delay device 1 is specifically divided into a communication microcontroller unit (MCU) 11 and a delay timer 12. The communication microcontroller unit 11 is connected to the insertion process detection device 2 and the power distribution unit 3 respectively, and can obtain the insertion process determined by the insertion detection device 2 and the coding information determined by the power distribution unit 3, first decode the coding information, and obtain the corresponding delay control time, and then determine whether the trigger requirement is met according to the insertion process. If the insertion process at this time meets the trigger requirement, the delay timer 12 is controlled to perform the corresponding delay operation according to the delay control time, that is, to ensure that the action of the current relay K remains unchanged within the delay control time, and after the delay control time, the action of the relay K changes, that is, from the original power-on state to the power-off state or from the original power-off state to the power-on state.

[0073] In some embodiments, Figure 3 As shown, the insertion process detection device 2 includes: a sliding rheostat RA, a pull-up resistor RB and a current limiting resistor RC. The connection relationship of the components is: the first end of the sliding rheostat RA is connected to the delay device 1 and the first end of the current limiting resistor RC, the second end of the sliding rheostat RA is connected to the pull-up resistor RB, and the sliding end of the sliding rheostat RA is connected to the socket 4; the second end of the current limiting resistor RC is grounded.

[0074] In the embodiment, the insertion process detection device 2 is mainly used to detect the insertion process between the plug and the socket 4, wherein the plug adopts a two-stage process design, as shown in the schematic diagram. Figure 4 and Figure 5 As shown, the total length of the plug is 18min, the size of the plug plus the initial insulation protection part of the plug is 16min, there are 5.7-7.2min of insulation part and at least 8min of metal connection contact. Under this structure, during the insertion action, the spring process sensor in the socket is compressed. When the compression length is detected to be less than 5min, it is considered that the plug is inserted; when the length is detected to be gradually extended from 5min, it is considered that the plug is pulled out. Under the structure of this plug, the insertion process detection device 2 includes: a sliding rheostat RA, a pull-up resistor RB and a current limiting resistor RC. The principle of the insertion process detection device 2 is: when there is a plug-in and pull-out action between the plug and the socket 4, the sliding end of the sliding rheostat RA will be triggered due to the corresponding plug-in and pull-out action, thereby changing the resistance value of the sliding rheostat RA connected to the circuit, and then the resistance value is transmitted to the IO port of the digital-to-analog converter of the communication microcontroller unit 11 through voltage division, and the expansion process is converted into the voltage value of the IO port, so as to evaluate and determine the expansion process, that is, determine the insertion process. The function of the pull-up resistor RB is to ensure that the second end of the sliding rheostat DA maintains a 5V voltage, while the function of the current-limiting resistor RC is to divide the voltage and limit the current to ensure the normal operation of the circuit.

[0075] It should be noted that the embodiment provided by the present invention is only one possible implementation method, but is not limited to only this implementation method and can be set according to the needs of the user.

[0076] The embodiment of the present invention provides a complete structure of a time delay device and an insertion process detection device. Under this structure, the accuracy of the insertion process obtained by the insertion process detection device is guaranteed, and the sensitivity of the delay device controlling the action of the relay is guaranteed, and the overall synchronization between the current action in the circuit and the action between the plug and the socket is reduced, thereby reducing the probability of arc ignition, thereby improving the safety of the electronic device during use. In addition, the embodiment provided by the present invention has a simple structure and is easy to detect.

[0077] In some embodiments, Figure 6 As shown, the power distribution unit 3 includes: a distribution unit processor 31, a power management chip 32, a transistor Q, a comparator U, a first resistor R1, a second resistor R2, a third resistor R3, a first capacitor C1, a second capacitor C2, a fourth resistor R4, a fifth resistor R5 and a third capacitor C3. The connection relationship of the components in the power distribution unit 3 is as follows: the output end of the distribution unit processor 31 is connected to the input end of the power management chip 32; the input end of the distribution unit processor 31 is connected to the emitter of the transistor Q, the first end of the first resistor R1, the first end of the second resistor R2 and the first end of the first capacitor C1; the output end of the power management chip 32 is connected to the second end of the first resistor R1 and the first end of the second resistor R2; the second end of the second resistor R2 is connected to the first end of the third resistor R3 and the first input end of the comparator U; the second end of the third resistor R3 is connected to the first end of the second capacitor C2; the second input end of the comparator U is connected to the output end of the comparator U And the input end of the delay device 1 is connected; the output end of the delay device 1 is connected to the base of the transistor Q; the collector of the transistor Q, the second end of the first capacitor C1 and the second end of the second capacitor C2 are all grounded; the first end of the fourth resistor R4 is connected to the input end of the allocation unit processor 31; the second end of the fourth resistor R4 is connected to the first end of the fifth resistor R5, the first end of the second resistor R2, the first end of the first capacitor C1, the first end of the first resistor R1, the second end of the first resistor R1, the output end of the power management chip 32 and the emitter of the transistor Q; the second end of the fifth resistor R5 is connected to the first end of the third capacitor C3; the second end of the third capacitor C3 is grounded.

[0078] In the embodiment, the working principle of the power distribution unit 3 is: mainly through the distribution unit processor 31 to control a power management chip 32 that can output 12V and 5V adjustable, according to the established protocol, output 12V power supply signal and 5V communication signal. For example: the current protocol stipulates that in order to maintain the power supply of the socket 4 and the power supply of the relay K, select the energy storage capacitor attached to the larger voltage follower end, and adopt 3 seconds of 12V power supply and 50 milliseconds of 5V communication signal settings. Among them, the 3-second 12V power supply is mainly for the communication at the end of the socket 4 and the power supply of the relay K system. After the delay device 1 detects that the signal changes from 12V to 5V, the delay device 1 encodes, confirms, decodes, and feedbacks the coded information according to the protocol based on the 5V communication signal (coded information) sent by the distribution unit processor 31. After completing the above communication, the delay control time is determined and the delay time is changed.

[0079] Among them, the power management chip 32 communicates through the allocation unit processor 31, and the overall control of the parameters of the peripheral circuit through the transistor Q realizes 12V output, 5V high level output and low level output. According to the requirements of the protocol, in the 5V communication stage, the communication microprocessor 11 in the delay device 1 connected to the socket 4 can determine and feedback the information such as the coding information through the corresponding electronic components in the circuit, and re-transmit it to the allocation unit processor 31 for information confirmation.

[0080] It should be noted that the power distribution unit 3 provided by the present invention can communicate or supply power to multiple sockets 4, as shown in the schematic diagram. Figure 7 shown.

[0081] in, Figure 6 In the circuit shown, the first resistor R1 and the first capacitor C1 constitute an RC filter circuit for filtering the power supply signal; the second resistor R2, the third resistor R3 and the second capacitor C2 also constitute an RC filter circuit for filtering the communication signal, and the second capacitor C2 is also used for energy storage, and the comparator U connected thereto functions as a voltage follower; the fourth resistor, the fifth resistor and the third capacitor also constitute an RC filter circuit for filtering the feedback signal.

[0082] It should be noted that the embodiment provided by the present invention is only one possible implementation method, but is not limited to only this implementation method and can be set according to the needs of the user.

[0083] The specific structure of a power distribution unit 3 provided in an embodiment of the present invention realizes a bus design integrating power supply and communication, and the functions of power supply and communication can be realized by only one power supply line, and the structure is relatively simple.

[0084] It can be seen from the above technical scheme that the present invention provides a delayed power-on control circuit, including: a relay, a delay device, an insertion process detection device and a power distribution unit; wherein the delay device includes: a communication micro-control unit and a delay timer; the insertion process detection device includes: a sliding rheostat RA, a pull-up resistor and a current limiting resistor; the power distribution unit includes: a distribution unit processor, a power management chip, a triode, a comparator, a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a fourth resistor, a fifth resistor and a third capacitor. Under this structural design, the communication micro-processing unit is used to obtain the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and decode the coding information to obtain the delay control time corresponding to the coding information; when it is determined that the insertion process meets the triggering requirements, the trigger delay timer performs the corresponding delay operation according to the delay control time; the delay timer is used to control the power on or off of the relay after performing the delay operation; the insertion process detection device cleverly uses the flexibility of the sliding rheostat to detect the insertion process; and the power distribution unit realizes the bus design of power supply and communication integration. On the whole, the delayed power-on control circuit provided by the present invention reduces the synchronization between the current action in the circuit and the action between the plug and the socket through the delay device, the insertion process detection device and the relay, thereby reducing the probability of arc ignition and further improving the safety of electronic equipment during use.

[0085] On the other hand, the present invention also provides an electronic device, including the above-mentioned delayed power-on control circuit, and having the same beneficial effects. The embodiment of the electronic device provided by the present invention is the same as the embodiment of the above-mentioned delayed power-on control circuit, so the present invention will not be described in detail here.

[0086] On the other hand, the present invention also provides a control method for a time-delay power-on control circuit, which is applied to the above-mentioned time-delay power-on control circuit. Figure 8 As shown, the following steps are included:

[0087] S10: Acquire the insertion progress between the plug and the socket determined by the insertion progress detection device.

[0088] S11: Obtaining coding information determined by the power distribution unit according to the power supply demand of the load.

[0089] S12: Determine the delay control time according to the insertion process and the coding information, and perform a corresponding delay operation according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire.

[0090] In an embodiment, the delayed power-on control circuit includes: a relay, a delay device, an insertion process detection device and a power distribution unit, wherein the insertion process detection device is connected to the socket; the delay device is connected to the insertion process detection device and the power distribution unit; the relay is connected to the delay device, and the contacts of the relay are arranged on the live wire of the plug branch path in the socket. In a specific embodiment, the delay device is based on the insertion process between the plug and the socket determined by the insertion process detection device, and its principle is: when the plug is plugged in and out of the socket, since the insertion process detection device is connected to the socket, the insertion process detection device can determine the insertion process between the plug and the socket according to the internal situation of the socket; the delay device is based on the coding information determined by the power distribution unit according to the power supply demand of the load, and its principle is: the specific on-off time of the circuit is mainly determined according to the power supply demand of the load. When the power supply demand of the load is greater, the delay control time can be shorter, and when the power supply demand of the load is smaller, the delay control time can be appropriately adjusted to be larger. The specific delay control time can be based on It is adjusted according to the actual working conditions of the actual plugging and unplugging action and the requirements of the operation manual. Since the information data is usually encoded, encrypted and other operations are performed during the output process to avoid external interference, the power distribution unit sends the signal with the delay control time to the delay device in the format of encoded information; then the delay device first decodes the encoded information to obtain the corresponding delay control time. After the insertion process meets the triggering requirements, the delay device triggers the corresponding delay operation (for example: delay for a period of time). After the delay operation, the delay device controls the power on or off of the relay, and the contact of the relay is set on the live wire, so that the power on or off of the relay controls the on and off of the live wire in the entire circuit.

[0091] It should be noted that after the delay device determines the corresponding delay control time through decoding, it is also necessary to provide feedback, that is, to re-upload the delay control time determined by the delay device to the power distribution unit, and the power distribution unit determines whether the currently received delay control time meets the delay time standard based on the obtained delay control time, that is, to determine whether the delay device is faulty. The judgment standard is: when the delay control time received by the power distribution unit is the same as the sending delay control time, it is determined that the entire transmission process of the information data and the delay device are fault-free. If there is an abnormality between the delay control time received by the power distribution unit and the sending delay control time, it is determined that the entire transmission process of the information data and / or the delay device are faulty.

[0092] Among them, the power distribution unit specifically judges the entire transmission process of the information data and whether the delay device has a fault according to the feedback of the delay device, and the specific judgment criteria of the node where the fault occurs are: when the delay device sends feedback to the power distribution unit, and the feedback has information representing the delay control time, then it is determined that the information data has no fault in the transmission process; at this time, the currently received delay control time is judged. If the currently received delay control time is the same as the sent delay control time, it means that the information data has no fault in the transmission process and the delay device has no fault; if the currently received delay control time is different from the sent delay control time, it means that the information data has no fault in the transmission process, but the delay device has a decoding fault; when the delay device sends feedback to the power distribution unit, and the feedback does not have information representing the delay control time, it means that the current information data has no fault in the transmission process, but the delay device has a decoding fault; when the delay device does not send feedback to the power distribution unit, it is divided into two situations at this time, one is that the encoded information is lost during the transmission process, and the other is that the delay device fails and cannot send feedback. The specific judgment criteria provided by the present invention can quickly determine the transmission process of the current information data and the status of the delay device according to the feedback of the delay device, that is, when a fault occurs, the faulty node can be quickly determined and repaired.

[0093] It should be noted that the specific judgment standard provided by the present invention is only one possible implementation method, but is not limited to only this implementation method and can be set according to the needs of the user.

[0094] It can be seen from the above technical scheme that the present invention provides a control method for a delayed power-on control circuit, including: obtaining the insertion process between the plug and the socket determined based on the insertion process detection device; obtaining the coding information determined based on the power supply demand of the load by the power distribution unit; determining the delay control time according to the insertion process and the coding information, and performing the corresponding delay operation according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire. On the whole, the control method for the delayed power-on control circuit provided by the present invention mainly reduces the synchronization between the current action in the circuit and the action between the plug and the socket by controlling the delay device, the insertion process detection device and the relay, thereby reducing the probability of arc ignition, thereby improving the safety of the electronic equipment during use.

[0095] In some embodiments, when the delay device specifically includes: a communication micro control unit and a delay timer, the function of the communication micro control unit is to decode the coded information to obtain the delay control time corresponding to the coded information; and to determine whether the insertion process meets the trigger requirements; when the insertion length corresponding to the insertion process meets the preset length requirement, and the insertion time corresponding to the insertion process meets the preset time requirement, it is determined that the insertion process meets the trigger requirements; the function of the delay timer is to perform the corresponding delay operation according to the delay control time after the insertion process meets the trigger requirements, so as to control the power on or off of the relay after the delay operation is executed, and then control the conduction or disconnection of the live wire.

[0096] It should be noted that the triggering requirements that need to be met when the plug is inserted into the socket or unplugged are generally divided into length conditions and time conditions, which are used to determine whether the plug is plugged in place and whether there is a dwell time, but the specific values ​​for the insertion action and the unplugging action are different. For example: the plug is a plug with a spring structure as an example. When the plug is inserted into the socket, the spring structure in the plug changes from a normal state to a compressed state. If the triggering condition is to be met at this time, the length condition at this time needs to be determined whether the length of the spring in the plug reaches the compression limit (preset length). If so, it is determined that the length condition is met in the current situation. After the length condition is met, the time to meet the current length condition is determined. If there is no other plugging and unplugging action within the preset time, it is determined that the time condition is met at this time; when the plug is unplugged from the socket, the spring structure in the plug changes from a compressed state to a normal state. If the triggering condition is to be met at this time, the conditional length condition at this time needs to be determined whether the length of the spring in the plug is greater than the compression limit (preset length). If so, it is determined that the length condition is met in the current situation. After the length condition is met, the time to meet the current length condition is determined. If there is no other plugging and unplugging action within the preset time, it is determined that the time condition is met at this time.

[0097] In addition, in the control method of the delayed power-on control circuit provided by the present invention, the delay device also includes: judging whether the signal sent by the power distribution unit is a communication signal; if the signal sent by the power distribution unit is a communication signal, determining the coding information according to the information represented in the communication signal; if the signal sent by the power distribution unit is a power supply signal, satisfying its own power demand according to the power supply signal. In other words, the delay device is a function of judging the current signal by the type of signal sent through the physical connection with the power distribution unit, which also indirectly shows that the bus between the current delay device and the power distribution unit integrates power supply and communication, that is, a power supply communication bus.

[0098] From the above embodiments, it can be seen that the control process of the delay device is as follows: Fig. 9 As shown, the following steps are included:

[0099] S20: using the communication micro control unit to judge the power supply communication bus, and decoding the coded information of the communication signal to obtain the delay control time.

[0100] S21: Determine whether the process detection is interrupted. If not, return to step S20. If so, enter steps S22 and S24 at the same time.

[0101] S22: Determine whether there is an insertion action.

[0102] S23: If yes, the control delay timer starts; if no, the process returns to step S21.

[0103] S24: The relay connects the live wire.

[0104] S25: Determine whether there is a pull-out action.

[0105] S26: If yes, the relay disconnects the live wire, if no, return to step S21.

[0106] S27: Control delay timer starts.

[0107] The judgment workflow of the delay device is as follows: Fig.10 As shown, the following steps are included:

[0108] S30: Wait for 3 seconds for the 12V power supply signal of the power supply communication bus.

[0109] S31: Wait for 50ms of 5V communication signal of the power supply communication bus.

[0110] S32: Determine the corresponding delay control time according to the 5V communication signal.

[0111] S33: Upload the delay control time to the power distribution unit.

[0112] S34: Receive the final response from the power distribution unit, and then re-enter the step of S30.

[0113] It should be noted that in Fig.10 In the process shown, S30-S34 can be characterized as a cycle. It should also be noted that Fig. 9 and Fig.10 The steps shown are summaries of the above specific embodiments, and thus the present invention will not be described in detail here.

[0114] It can be seen that in the control method of the delayed power-on control circuit provided by the present invention, the communication microprocessor unit is used to obtain the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and decode the coding information to obtain the delay control time corresponding to the coding information; when it is determined that the insertion process meets the triggering requirements, the trigger delay timer performs the corresponding delay operation according to the delay control time; the delay timer is used to control the power on or off of the relay after performing the delay operation; and the power distribution unit realizes the bus design of power supply and communication integration. On the whole, the delayed power-on control circuit provided by the present invention reduces the synchronization of the current action in the circuit and the action between the plug and the socket through the delay device, the insertion process detection device and the relay, thereby reducing the probability of arc ignition, thereby improving the safety of electronic equipment during use.

[0115] Fig.11 A structural diagram of a control device for a delayed power-on control circuit provided by an embodiment of the present invention, such as Fig.11 As shown, the control device of the delayed power-on control circuit includes: a memory 60 for storing a computer program;

[0116] The processor 61 is used to implement the steps of the control method of the delayed power-on control circuit in the above embodiment when executing the computer program.

[0117] The control device of the delayed power-on control circuit provided in this embodiment may include but is not limited to a smart phone, a tablet computer, a laptop computer or a desktop computer.

[0118] Among them, the processor 61 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 61 can be implemented in at least one hardware form of digital signal processing (DSP), field-programmable gate array (FPGA), and programmable logic array (PLA). The processor 61 may also include a main processor and a coprocessor. The main processor is a processor for processing data in the awake state, also known as a central processing unit (CPU); the coprocessor is a low-power processor for processing data in the standby state. In some embodiments, the processor 61 may be integrated with a graphics processing unit (GPU), and the GPU is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 61 may also include an artificial intelligence (AI) processor, which is used to process computing operations related to machine learning.

[0119] The memory 60 may include one or more computer-readable storage media, which may be non-transitory. The memory 60 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In this embodiment, the memory 60 is at least used to store the following computer program 601, wherein, after the computer program is loaded and executed by the processor 61, it can implement the relevant steps of the control method of the delayed power-on control circuit disclosed in any of the aforementioned embodiments. In addition, the resources stored in the memory 60 may also include an operating system 602 and data 603, etc., and the storage method may be temporary storage or permanent storage. Among them, the operating system 602 may include Windows, Unix, Linux, etc.

[0120] In some embodiments, the control device of the delayed power-on control circuit may further include a display screen 62 , an input / output interface 63 , a communication interface 64 , a power supply 65 , and a communication bus 66 .

[0121] Those skilled in the art will understand that Fig.11 The structure shown in the figure does not constitute a limitation on the control device of the delayed power-on control circuit, and may include more or fewer components than those shown in the figure.

[0122] It is understandable that if the control method of the delayed power-on control circuit in the above embodiment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the current technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium to execute all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), electrically erasable programmable ROM, register, hard disk, removable disk, CD-ROM, magnetic disk or optical disk and other media that can store program codes.

[0123] Based on this, an embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the control method of the delayed power-on control circuit as described above are implemented.

[0124] The above is a detailed introduction to a control device for a delayed power-on control circuit provided by an embodiment of the present invention. The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part description.

[0125] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0126] The above is a detailed introduction to a delayed power-on control circuit and control method provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A delayed power-on control circuit, characterized in that: include: Relays, time delay devices, insertion progress detection devices and power distribution units; Wherein, the insertion process detection device is connected to the socket and is used to obtain the insertion process between the plug and the socket; The delay device is connected to the insertion process detection device and the power distribution unit, and is used to determine the delay control time according to the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and perform a corresponding delay operation according to the delay control time; The relay is connected to the delay device, and the contacts of the relay are arranged on the live wire of the plug branch path in the socket, which is used to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire.

2. The delayed power-on control circuit according to claim 1, characterized in that: The delay device comprises: a communication micro control unit and a delay timer; The communication microprocessor unit is respectively connected to the insertion process detection device, the power distribution unit and the delay timer, and is used to obtain the insertion process determined by the insertion process detection device and the coding information determined by the power distribution unit, and decode the coding information to obtain the delay control time corresponding to the coding information; when it is determined that the insertion process meets the triggering requirements, the delay timer is triggered to perform the corresponding delay operation according to the delay control time; The delay timer is connected to the relay and is used to control the power on or off of the relay after the delay operation is performed.

3. The delayed power-on control circuit according to claim 1, characterized in that: The insertion process detection device comprises: a sliding rheostat, a pull-up resistor and a current limiting resistor; Wherein, the first end of the sliding rheostat is connected to the delay device and the first end of the current limiting resistor, the second end of the sliding rheostat is connected to the pull-up resistor, and the sliding end of the sliding rheostat is connected to the socket; The second end of the current limiting resistor is grounded.

4. The delayed power-on control circuit according to claim 1, characterized in that: The power distribution unit includes: a distribution unit processor, a power management chip, a transistor, a comparator, a first resistor, a second resistor, a third resistor, a first capacitor and a second capacitor; Wherein, the output end of the distribution unit processor is connected to the input end of the power management chip; An input end of the distribution unit processor is connected to the emitter of the triode, the first end of the first resistor, the first end of the second resistor and the first end of the first capacitor; The output end of the power management chip is connected to the second end of the first resistor and the first end of the second resistor; The second end of the second resistor is connected to the first end of the third resistor and the first input end of the comparator; The second end of the third resistor is connected to the first end of the second capacitor; The second input terminal of the comparator is connected to the output terminal of the comparator and the input terminal of the delay device; The output end of the delay device is connected to the base of the transistor; The collector of the transistor, the second end of the first capacitor and the second end of the second capacitor are all grounded.

5. The delayed power-on control circuit according to claim 4, characterized in that: The power distribution unit further includes: a fourth resistor, a fifth resistor and a third capacitor; Wherein, the first end of the fourth resistor is connected to the input end of the allocation unit processor; The second end of the fourth resistor is connected to the first end of the fifth resistor, the first end of the second resistor, the first end of the first capacitor, the first end of the first resistor, the second end of the first resistor, the output end of the power management chip and the emitter of the transistor; The second end of the fifth resistor is connected to the first end of the third capacitor; A second terminal of the third capacitor is grounded.

6. An electronic device, characterized in that: It comprises the delayed power-on control circuit as described in any one of claims 1 to 5.

7. A control method for a delayed power-on control circuit, characterized in that: The delayed power-on control circuit as claimed in claim 1 comprises: Acquiring the insertion progress between the plug and the socket determined based on the insertion progress detection device; Obtaining coding information determined by a power distribution unit according to a power supply demand of a load; The delay control time is determined according to the insertion process and the coding information, and a corresponding delay operation is performed according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire.

8. The control method of the delayed power-on control circuit according to claim 7, characterized in that: The delay device includes: a communication micro control unit and a delay timer, which determines the delay control time according to the insertion process and the coding information, and performs a corresponding delay operation according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire, including: The communication micro control unit is used to decode the coded information to obtain the delay control time corresponding to the coded information; and determine whether the insertion process meets the triggering requirement; When the insertion length corresponding to the insertion process meets the preset length requirement, and the insertion time corresponding to the insertion process meets the preset time requirement, it is determined that the insertion process meets the trigger requirement; If the insertion process meets the triggering requirement, the delay timer is triggered to perform the corresponding delay operation according to the delay control time, so as to control the power on or off of the relay after the delay operation is performed, thereby controlling the conduction or disconnection of the live wire.

9. The control method of the delayed power-on control circuit according to claim 7, characterized in that: Also includes: The delay control time is uploaded to the power distribution unit so that the power distribution unit can determine whether the delay control time meets the delay time standard according to the power supply demand.

10. The control method of the delayed power-on control circuit according to any one of claims 7 to 9, characterized in that: Also includes: Determining whether the signal sent by the power distribution unit is a communication signal; If the signal sent by the power distribution unit is the communication signal, determining the coding information according to the information represented in the communication signal; If the signal sent by the power distribution unit is a power supply signal, the power demand of the power distribution unit is met according to the power supply signal.

Images