Starting circuit and starting method of communication module, vehicle-mounted wireless terminal and vehicle

Abstract

The invention provides a starting circuit and starting method of a communication module, a vehicle-mounted wireless terminal and a vehicle, the starting circuit of the communication module is applied to the vehicle-mounted wireless terminal, the starting circuit comprises a power supply chip, the output end of the power supply chip is connected with the communication module, and the power supply chip is used for providing a voltage signal for the communication module; the control chip comprises a monitoring end and a control end, and the monitoring end is connected with the power supply chip and used for monitoring whether the voltage signal output by the output end of the power supply chip meets a preset condition or not; and the control end is connected with the communication module and is used for controlling the communication module to start under the condition that the monitoring end monitors that the voltage signal meets the preset condition. Whether the voltage signal output by the output end of the power supply chip meets the preset condition or not is monitored through the monitoring end of the control chip, the communication module is controlled to be started through the control end, the starting stability of the communication module is improved, and the probability of starting failure caused by unstable power supply voltage is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of power supply of a telematics processor, and in particular to a starting circuit and a starting method of a communication module, a vehicle-mounted wireless terminal and a vehicle. Background Art

[0002] The vehicle-mounted wireless terminal (Telematics BOX, T-BOX) can deeply read the vehicle transmission bus data and private protocols. T-BOX has a dual-core OBD (On-Board Diagnostics) module and a dual-core CPU (Central Processing Unit) architecture, which respectively collect bus data and private protocol reverse control, and transmit the data to the cloud server through the network.

[0003] During the DV test of T-BOX (DV test refers to the automobile design verification test, which is the process of testing and evaluating the performance parameters or pressure strength of automobile parts under different test conditions. Among them, D stands for design and V stands for verification, which are two important links in the development of automobile parts.) it was found that when the battery of the car is charging, that is, when the power supply is slowly rising, the power supply of the communication module in T-BOX is in a critical unstable state. This unstable state may cause the communication module to start abnormally, and then cause the communication functions of T-BOX to fail to work normally. Summary of the invention

[0004] In view of this, the purpose of the present application is to propose a startup circuit, a startup method, a vehicle-mounted wireless terminal and a vehicle of a communication module, aiming to improve the startup stability of the communication module and reduce the probability of startup abnormalities.

[0005] Based on the above purpose, in a first aspect, the present application provides a startup circuit of a communication module, which is applied to a vehicle-mounted wireless terminal, and the startup circuit includes: a power supply chip, the output end of the power supply chip is connected to the communication module, and is used to provide a voltage signal for the communication module;

[0006] A control chip, wherein the control chip includes a monitoring end and a control end, wherein the monitoring end is connected to the power supply chip and is used to monitor whether the voltage signal output by the output end of the power supply chip meets a preset condition; the control end is connected to the communication module and is used to control the communication module to start when the monitoring end detects that the voltage signal meets the preset condition.

[0007] Furthermore, the power supply chip also includes a power quality indicator terminal, which is also connected to the monitoring terminal of the control chip so that the power quality indicator terminal monitors whether the voltage signal output by the output terminal of the power supply chip meets a preset condition.

[0008] Furthermore, the power supply chip further includes a comparator, which is respectively connected to the power quality indicator terminal and the output terminal of the power supply chip, and is used to compare the voltage signal of the output terminal of the power supply chip with the size of a preset reference voltage signal;

[0009] When the voltage signal output by the power supply chip is greater than the reference voltage signal, the output terminal of the comparator outputs a voltage jump indication signal, and the power quality indication terminal generates a voltage jump based on the voltage jump indication signal;

[0010] The control end is also used to control the communication module to start up based on the voltage jump of the power quality indication end.

[0011] Furthermore, the power supply chip also includes a transistor, which includes a first electrode, a second electrode and a drain, the first electrode of the transistor is connected to the power quality indication end, the second electrode of the transistor is connected to the output end of the comparator, and the drain of the transistor is grounded. When the reference voltage signal is greater than the voltage signal output by the output end of the power supply chip, the output end of the comparator outputs a voltage jump indication signal, and the first electrode and the drain of the transistor are connected to cause a voltage jump at the power quality indication end.

[0012] Furthermore, the comparator also includes a reference voltage input terminal, and the reference voltage input terminal is used to receive a preset reference voltage signal.

[0013] Furthermore, the power quality indicator terminal is connected to the output terminal of the power supply chip to receive a voltage signal output by the power supply chip.

[0014] Furthermore, it also includes a first voltage-dividing resistor, a filter capacitor and a second voltage-dividing resistor, the first voltage-dividing resistor is connected in series between the power quality indication terminal and the output terminal of the power supply chip, the filter capacitor is connected in series between the power quality indication terminal and the ground terminal, and the second voltage-dividing resistor is arranged in parallel with the filter capacitor.

[0015] Based on the above purpose, in a second aspect, the present application further provides a method for starting a communication module, which is implemented based on the startup circuit of the communication module described in the first aspect. The startup method of the communication module includes: monitoring whether the voltage signal output by the power supply chip meets a preset condition through a monitoring terminal of the control chip;

[0016] When the monitoring end detects that the voltage signal meets a preset condition, the communication module is controlled to start through the control end of the control chip.

[0017] Based on the above purpose, in a third aspect, the present application further provides a vehicle-mounted wireless terminal, characterized in that the vehicle-mounted wireless terminal includes a startup circuit of the communication module as described in the first aspect above.

[0018] Based on the above purpose, in a fourth aspect, the present application also provides a vehicle, including the vehicle-mounted wireless terminal as described in the third aspect above.

[0019] Based on the above purpose, in a fifth aspect, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for starting the communication module as described in the second aspect above is implemented.

[0020] Based on the above purpose, in a sixth aspect, the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the method for starting the communication module as described in the second aspect above.

[0021] From the above description, it can be seen that the startup circuit of the communication module provided in the present application is applied to a vehicle-mounted wireless terminal. The monitoring end of the control chip monitors whether the voltage signal output by the output end of the power supply chip meets the preset conditions. When it is determined that the voltage signal output by the output end of the power supply chip meets the preset conditions, the startup of the communication module is controlled by the control end of the control chip, thereby improving the startup stability of the communication module and reducing the probability of startup abnormalities caused by unstable power supply voltage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic diagram of a startup circuit of a communication module provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of a startup circuit of another communication module provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of a startup circuit of another communication module provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of a startup circuit of another communication module provided in an embodiment of the present application;

[0027] Figure 5 A schematic diagram of a startup circuit of another communication module provided in an embodiment of the present application;

[0028] Figure 6 A schematic diagram of a startup circuit of another communication module provided in an embodiment of the present application;

[0029] Figure 7 A schematic diagram of a startup circuit of another communication module provided in an embodiment of the present application;

[0030] Figure 8 A flowchart of a method for starting a communication module provided in an embodiment of the present application;

[0031] Fig. 9 A schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0032] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0033] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] In some embodiments, Figure 1 A schematic diagram of a startup circuit of a communication module is shown, Figure 1As shown, the startup circuit of the communication module is applied to the vehicle-mounted wireless terminal, through which the vehicle-mounted wireless terminal can provide vehicle condition report, driving report, fuel consumption statistics, fault reminder, violation query, location trajectory, driving behavior, safety and theft prevention, reservation service, remote car search, use of mobile phone to control car doors, windows, lights, locks, horns, double flash, mirror folding, sunroof, monitoring central control warning and airbag status, etc. The startup circuit of the communication module includes a power supply chip 110 and a control chip 120; wherein the output terminal 18 of the power supply chip 110 is connected to the communication module 130, for providing a voltage signal to the communication module 130; the control chip 120 includes a monitoring terminal 121 and a control terminal 122, the monitoring terminal 121 is connected to the power supply chip 110, and is used to monitor whether the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset conditions; the control terminal 122 is connected to the communication module 130, and is used to control the communication module 130 to start when the monitoring terminal 121 detects that the voltage signal meets the preset conditions.

[0035] Specifically, the monitoring terminal 121 of the control chip 120 is connected to the output terminal 18 of the power supply chip 110. The monitoring terminal 121 of the control chip 120 can detect the voltage signal output by the output terminal 18 of the power supply chip 110, and continuously monitor whether the voltage signal meets the preset conditions. When it is determined that the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset conditions, the control terminal 122 of the control chip 120 is used to control the startup of the communication module 130 to provide a stable voltage to the communication module 130, thereby improving the startup stability of the communication module 130 and reducing the probability of startup abnormalities caused by unstable power supply voltage.

[0036] The startup circuit of the communication module provided in the above embodiment monitors whether the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset conditions through the monitoring terminal 121 of the control chip 120, and when it is determined that the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset conditions, the communication module 130 is controlled to start through the control terminal 122 of the control chip 120, thereby improving the startup stability of the communication module 130 and reducing the probability of startup abnormalities caused by unstable power supply voltage.

[0037] In some embodiments, Figure 2 The schematic diagram of the startup circuit of another communication module shown in the figure, the power supply chip 110 also includes a power quality indicator terminal 14, and the power quality indicator terminal 14 is also connected to the monitoring terminal 121 of the control chip 120, so that the monitoring terminal 121 monitors whether the voltage signal output by the power supply chip 110 meets the preset conditions through the power quality indicator terminal 14.

[0038] Specifically, the power quality indicator terminal 14 is a port for indicating whether the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset conditions. Whether the voltage signal meets the preset conditions can be understood as whether the voltage signal reaches a stable state. For example, when the desired target voltage is 5V, when the voltage signal output by the output terminal 18 of the power supply chip 110 is any value within the range [4.7V, 5.3V], it can be determined that the voltage signal output by the output terminal 18 of the power supply chip 110 has reached a stable state, that is, the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset conditions. Therefore, the monitoring terminal 121 can determine whether the voltage signal output by the power supply chip 110 meets the preset conditions by monitoring the power quality indicator terminal 14.

[0039] In a specific embodiment, Figure 3 The schematic diagram of another startup circuit of the communication module shown in FIG. 1 is a schematic diagram of a startup circuit of another communication module, wherein the power supply chip 110 further includes a comparator 113, which is connected to the power quality indicator terminal 14 and the output terminal 18 of the power supply chip 110 respectively, and is used to compare the voltage signal of the output terminal 18 of the power supply chip 110 with the magnitude of a preset reference voltage signal Vref;

[0040] When the voltage signal output by the power supply chip 110 is greater than the reference voltage signal, the output terminal of the comparator 113 outputs a voltage jump indication signal, and the power quality indication terminal 14 generates a voltage jump based on the voltage jump indication signal;

[0041] The control terminal 122 is further used to control the communication module 130 to start up based on the voltage jump of the power quality indicator terminal 14 .

[0042] It should be noted that the power supply chip 110 can be a boost chip or a buck chip. If the power supply chip 110 is a boost chip, the voltage signal input to the power supply chip 110 can be boosted and the boosted voltage signal can be output through the output terminal 18 of the power supply chip 110. If the power supply chip 110 is a buck chip, the voltage signal input to the power supply chip 110 can be reduced and the reduced voltage signal can be output through the output terminal 18 of the power supply chip 110.

[0043] Specifically, the voltage jump indication signal is a signal for indicating that the voltage signal output by the output terminal 18 of the power supply chip 110 can stably supply power to start the communication module 130. When the voltage signal output by the output terminal 18 of the power supply chip 110 is greater than the reference voltage signal Vref, the output terminal of the comparator 113 outputs the voltage jump indication signal, and the power quality indication terminal 14 undergoes a voltage jump based on the voltage jump indication signal; the control terminal 122 is also used to control the communication module 130 to start based on the voltage jump of the power quality indication terminal 14.

[0044] It can be understood that the startup circuit of the communication module 130 is for the power-on process of the communication module 130. When the main power supply is supplying power, there is a process of voltage slowly rising, for example: rising at a rate of change of 0.5V / min, etc. At this time, the power supply chip 110 performs a voltage step-up or voltage step-down process on the voltage signal of the main power supply, and the voltage signal output by the output terminal 18 of the power supply chip 110 is also in the process of slowly rising. When the voltage signal output by the output terminal 18 of the power supply chip 110 slowly rises to be greater than the reference voltage signal Vref, it can be considered that the voltage signal output by the output terminal 18 has slowly risen to a usable range. Accordingly, the output terminal of the comparator 113 outputs a voltage jump indication signal, and the power quality indication terminal 14 undergoes a voltage jump based on the voltage jump indication signal, indicating that the power quality is good, which can be used to control the startup of the communication module 130 through the control terminal 122 of the control chip 120.

[0045] Exemplarily, the value of the reference voltage signal Vref can be set according to preset conditions. For example, if the voltage signal that meets the preset conditions is 5V, the reference voltage signal Vref can be set to any value greater than and close to 5V, such as 5.1V or 5.2V. It can be set specifically according to the accuracy requirements. For example, if the accuracy requirements are high, the reference voltage signal Vref should be set to a value within the first preset range, wherein the first preset range can be [Vref+V1, Vref+V2], wherein V1 is less than V2; if the accuracy requirements are low, the reference voltage signal Vref can be set to a value within the second preset range, wherein the second preset range can be [Vref+V2, Vref+V3], wherein V2 is less than V3. Exemplarily, V1 is 0.01V, V2 is 0.1V, and V3 is 0.2V. When the voltage signal outputted by the output terminal 18 of the power supply chip 110 is greater than the reference voltage signal Vref, it can be determined that the voltage signal outputted by the output terminal 18 of the power supply chip 110 meets the preset condition. At this time, the output terminal of the comparator 113 outputs a voltage jump indication signal, and the power quality indication terminal 14 undergoes a voltage jump based on the voltage jump indication signal. By setting the comparator 113, the purpose of being able to quickly indicate that the power quality indication terminal 14 has a voltage jump when the voltage signal outputted by the output terminal 18 of the power supply chip 110 meets the preset condition is achieved, thereby achieving the purpose of quickly monitoring whether the voltage signal outputted by the output terminal 18 of the power supply chip 110 meets the preset condition through the power quality indication terminal 14.

[0046] The power quality indication terminal 14 generates a voltage jump based on the voltage jump indication signal. The voltage jump may be from a high level to a low level or from a low level to a high level, which is not specifically limited here.

[0047] In a specific embodiment, the power quality indication terminal 14 jumps from a high level to a low level based on the voltage jump indication signal as an example. Figure 4 The schematic diagram of the startup circuit of another communication module shown in the figure, the power supply chip 110 also includes a transistor 114, the transistor 114 includes a first electrode S, a second electrode G and a drain D, the first electrode S of the transistor is connected to the power quality indication terminal 14, the second electrode G of the transistor is connected to the output terminal of the comparator 113, and the drain D of the transistor is grounded. When the reference voltage signal Vref is greater than the voltage signal output by the output terminal 18 of the power supply chip 110, the output terminal of the comparator 113 outputs a voltage jump indication signal, and the first electrode S and the drain D of the transistor are connected to cause a voltage jump at the power quality indication terminal 14.

[0048] Specifically, the comparator 113 compares the voltage signal output by the output terminal 18 of the power supply chip 110 with the reference voltage signal Vref. When the voltage signal output by the output terminal 18 of the power supply chip 110 is not greater than the reference voltage signal Vref, it proves that the power quality is not good. At this time, the comparator 113 does not act, that is, the first electrode S and the drain D of the transistor are not conductive, and the power quality indicator terminal 14 is in a suspended state. The power quality indicator terminal 14 is forcibly given a high level through the high level of the external connection of the power quality indicator terminal 14. When the voltage signal output by the output terminal 18 of the power supply chip 110 is greater than the reference voltage signal Vref, it proves that the current power quality is good. At this time, the comparator 113 can output a high level to make the first electrode S and the drain D of the transistor conductive. When the first electrode S and the drain D of the transistor are conductive, the power quality indicator terminal 14 is forcibly grounded, and the level state of the power quality indicator terminal 14 jumps to a low level.

[0049] Through the above method, the two states of poor power quality and good power quality will cause obvious differences in the level state of the power quality indication terminal 14, so that the power state can be determined by distinguishing the voltage jump indication signal, that is, whether the communication module 130 can be stably controlled to start through the control terminal 122 of the control chip 120.

[0050] In a specific embodiment, the comparator 113 further includes a reference voltage input terminal, and the reference voltage input terminal is used to receive a preset reference voltage signal Vref.

[0051] like Figure 3 and Figure 4 As shown, the port corresponding to the reference voltage signal Vref in the comparator 113 is the reference voltage input terminal.

[0052] In a specific embodiment, Figure 5 In the schematic diagram of another startup circuit of a communication module shown, the power quality indicator terminal 14 is connected to the output terminal 18 of the power supply chip 110 to receive the voltage signal output by the power supply chip.

[0053] Specifically, by connecting the power quality indicator terminal 14 to the output terminal 18 of the power supply chip 110, the power quality indicator terminal 14 can receive the voltage signal output by the power supply chip 110. Furthermore, when the voltage signal output by the output terminal 18 of the power supply chip 110 does not meet the preset condition, the power quality indicator terminal 14 outputs a high level according to the voltage signal output by the power supply chip 110, and when the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset condition, the level state of the power quality indicator terminal 14 jumps to a low level. Of course, it is also possible that when the voltage signal output by the output terminal 18 of the power supply chip 110 does not meet the preset condition, the power quality indicator terminal 14 outputs a low level, and when the voltage signal output by the output terminal 18 of the power supply chip 110 meets the preset condition, the power quality indicator terminal 14 jumps to a high level according to the voltage signal output by the power supply chip 110.

[0054] In a specific embodiment, Figure 6 The schematic diagram of another startup circuit of a communication module is shown. The startup circuit further includes a first voltage-dividing resistor R1 . The first voltage-dividing resistor R1 is connected in series between the power quality indicator terminal 14 and the output terminal 18 of the power supply chip 110 .

[0055] Specifically, the first voltage-dividing resistor R1 can play a voltage-dividing role to avoid the problem of short circuit caused by the power quality indicator terminal 14 being connected to the output terminal 18 of the power supply chip 110 when the power quality indicator terminal 14 is grounded internally.

[0056] Optional, such as Figure 5 and Figure 6 As shown, the output terminal 18 of the power supply chip 110 connected to the power quality indication terminal 14 can be replaced by other external power supplies, such as a 5V power supply, etc., to provide a high level for the power quality indication terminal 14.

[0057] In a specific embodiment, Figure 7 The schematic diagram of the startup circuit of another communication module shown in the figure further includes a filter capacitor C and a second voltage-dividing resistor R2, the filter capacitor C is connected in series between the power quality indicator terminal 14 and the ground terminal GND, and the second voltage-dividing resistor R2 is arranged in parallel with the filter capacitor C.

[0058] Specifically, the filter capacitor C can filter out glitches generated when the voltage changes, and can also filter out interference signals, such as environmental interference, to improve the quality of the voltage signal. The second voltage-dividing resistor R2 can play a role in voltage division and protection for the startup circuit.

[0059] Optionally, the power supply chip 110 may be an MPQ4316 chip, wherein the output terminal 18 of the power supply chip 110 may be an FB port of the MPQ4316 chip, and the power quality indication terminal 14 of the power supply chip 110 may be a PG port of the MPQ4316 chip.

[0060] The startup circuit of the communication module provided in the present application is applied to a vehicle-mounted wireless terminal. Whether the voltage signal output by the output end of the power supply chip meets the preset conditions is monitored by the monitoring end of the control chip. When it is determined that the voltage signal output by the output end of the power supply chip meets the preset conditions, the startup of the communication module is controlled by the control end of the control chip, thereby improving the startup stability of the communication module and reducing the probability of startup abnormality caused by unstable power supply voltage.

[0061] In some embodiments, Figure 8 A flowchart of a method for starting a communication module is shown, which is implemented based on the starting circuit of the communication module as described in any of the above embodiments, and the starting circuit of the communication module includes a power supply chip and a control chip; wherein the output end of the power supply chip is connected to the communication module, and the control chip includes a monitoring end and a control end, and the monitoring end is connected to the power supply chip; and the control end is connected to the communication module.

[0062] S810. Monitor whether the voltage signal output by the power supply chip meets a preset condition through the monitoring terminal of the control chip.

[0063] S820: When the monitoring end detects that the voltage signal meets the preset condition, the control end of the control chip controls the communication module to start.

[0064] Based on the above example, optionally, monitoring whether the voltage signal outputted by the output terminal of the power supply chip meets a preset condition includes:

[0065] According to the target voltage, determine the expected voltage range;

[0066] When the voltage signal outputted from the output terminal of the power supply chip is within the expected voltage range, it is determined that the voltage signal outputted from the output terminal of the power supply chip meets a preset condition.

[0067] Based on the above example, optionally, the power supply chip also includes a power quality indicator terminal, and the power quality indicator terminal is also connected to the monitoring terminal of the control chip, so that the power quality indicator terminal monitors whether the voltage signal output by the output terminal of the power supply chip meets a preset condition.

[0068] Based on the above example, optionally, monitoring whether the voltage signal output by the power supply chip meets a preset condition through the monitoring terminal of the control chip includes:

[0069] When the monitoring end of the control chip detects that the output of the power quality indication end changes, it is determined that the voltage signal output by the output end of the power supply chip meets a preset condition.

[0070] Based on the above example, optionally, the power supply chip further includes a comparator, which is respectively connected to the power quality indicator terminal and the output terminal of the power supply chip, and is used to compare the voltage signal of the output terminal of the power supply chip with a preset reference voltage signal;

[0071] When the voltage signal output by the power supply chip is greater than the reference voltage signal, the output terminal of the comparator outputs a voltage jump indication signal, and the power quality indication terminal generates a voltage jump based on the voltage jump indication signal;

[0072] The control end is also used to control the communication module to start up based on the voltage jump of the power quality indication end.

[0073] Based on the above examples, the following options are optional:

[0074] A voltage preset range is determined according to the target voltage and the preset accuracy, and a reference voltage signal is determined according to the voltage preset range.

[0075] Exemplarily, the target voltage is 5V, and the reference voltage signal is set according to a preset accuracy, that is, an accuracy requirement. For example, if the accuracy requirement is high, the reference voltage signal Vref should be set to a value within a first preset range, wherein the first preset range may be [Vref+V1, Vref+V2], wherein V1 is less than V2; if the accuracy requirement is low, the reference voltage signal Vref may be set to a value within a second preset range, wherein the second preset range may be [Vref+V2, Vref+V3], wherein V2 is less than V3; the voltage preset range includes a first preset range and a second preset range.

[0076] Based on the above example, optionally, the power supply chip also includes a transistor, the transistor includes a first electrode, a second electrode and a drain, the first electrode of the transistor is connected to the power quality indication end, the second electrode of the transistor is connected to the output end of the comparator, and the drain of the transistor is grounded. When the voltage signal output by the output end of the power supply chip is greater than the reference voltage signal, the output end of the comparator outputs a voltage jump indication signal, and the first electrode and the drain of the transistor are connected to cause a voltage jump at the power quality indication end.

[0077] Based on the above example, optionally, the comparator further includes a reference voltage input terminal, and the reference voltage input terminal is used to receive a preset reference voltage signal.

[0078] Based on the above example, optionally, the power quality indicator terminal is connected to the output terminal of the power supply chip to receive a voltage signal output by the power supply chip.

[0079] Based on the above example, optionally, the output of the power quality indicator terminal changes, including:

[0080] When the voltage signal outputted by the output terminal of the power supply chip does not meet the preset condition, the power quality indicator terminal outputs a high level according to the voltage signal outputted by the power supply chip;

[0081] When the voltage signal outputted by the output terminal of the power supply chip meets the preset condition, the level state of the power quality indication terminal jumps to a low level.

[0082] Based on the above example, optionally, it also includes a first voltage-dividing resistor, a filter capacitor and a second voltage-dividing resistor, the first voltage-dividing resistor is connected in series between the power quality indication terminal and the output terminal of the power supply chip, the filter capacitor is connected in series between the power quality indication terminal and the ground terminal, and the second voltage-dividing resistor is arranged in parallel with the filter capacitor.

[0083] The communication module startup method provided in the embodiment of the present application monitors whether the voltage signal output by the output end of the power supply chip meets the preset conditions through the monitoring end of the control chip, and when it is determined that the voltage signal output by the output end of the power supply chip meets the preset conditions, the communication module is started by controlling the control end of the control chip, thereby improving the startup stability of the communication module and reducing the probability of startup abnormality caused by unstable power supply voltage.

[0084] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the described method.

[0085] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0086] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for starting the communication module described in any of the above embodiments is implemented.

[0087] Fig. 9 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0088] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0089] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0090] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0091] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).

[0092] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0093] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0094] The electronic device of the above embodiment is used to implement the startup method of the corresponding communication module in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be repeated here.

[0095] Based on the same inventive concept, corresponding to the startup circuit of the communication module of any of the above embodiments, the present application also provides a vehicle-mounted wireless terminal, the vehicle-mounted wireless terminal comprising the startup circuit of the communication module as described in any of the above embodiments. The vehicle-mounted wireless terminal also has the beneficial effects of the corresponding circuit embodiment, which will not be repeated here.

[0096] Based on the same inventive concept, corresponding to the startup circuit of the communication module of any of the above embodiments, the present application also provides a vehicle, the vehicle comprising the vehicle-mounted wireless terminal as described in any of the above embodiments. The vehicle also has the beneficial effects of the corresponding circuit embodiments, which will not be described in detail here.

[0097] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the startup method of the communication module as described in any of the above embodiments.

[0098] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0099] The computer instructions stored in the storage medium of the above embodiment are used to enable the computer to execute the startup method of the communication module as described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0100] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0101] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0102] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0103] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A startup circuit of a communication module, characterized in that: Applied to a vehicle-mounted wireless terminal, the startup circuit includes: A power supply chip, the output end of which is connected to the communication module and is used to provide a voltage signal for the communication module; A control chip, wherein the control chip includes a monitoring end and a control end, wherein the monitoring end is connected to the power supply chip and is used to monitor whether the voltage signal output by the output end of the power supply chip meets a preset condition; the control end is connected to the communication module and is used to control the communication module to start when the monitoring end detects that the voltage signal meets the preset condition.

2. The starting circuit according to claim 1, characterized in that: The power supply chip also includes a power quality indicator terminal, which is also connected to the monitoring terminal of the control chip so that the power quality indicator terminal monitors whether the voltage signal output by the output terminal of the power supply chip meets a preset condition.

3. The starting circuit according to claim 2, characterized in that: The power supply chip further includes a comparator, which is connected to the power quality indicator terminal and the output terminal of the power supply chip respectively, and is used to compare the voltage signal of the output terminal of the power supply chip with a preset reference voltage signal; When the voltage signal output by the power supply chip is greater than the reference voltage signal, the output terminal of the comparator outputs a voltage jump indication signal, and the power quality indication terminal generates a voltage jump based on the voltage jump indication signal; The control end is also used to control the communication module to start up based on the voltage jump of the power quality indication end.

4. The starting circuit according to claim 3, characterized in that: The power supply chip also includes a transistor, which includes a first electrode, a second electrode and a drain. The first electrode of the transistor is connected to the power quality indication terminal, the second electrode of the transistor is connected to the output terminal of the comparator, and the drain of the transistor is grounded. When the voltage signal output by the output terminal of the power supply chip is greater than the reference voltage signal, the output terminal of the comparator outputs a voltage jump indication signal, and the first electrode and the drain of the transistor are connected to cause a voltage jump at the power quality indication terminal.

5. The starting circuit according to claim 3, characterized in that: The comparator further includes a reference voltage input terminal, and the reference voltage input terminal is used to receive a preset reference voltage signal.

6. The starting circuit according to claim 2, characterized in that: The power quality indicator terminal is connected to the output terminal of the power supply chip to receive the voltage signal output by the power supply chip.

7. The starting circuit according to claim 6, characterized in that: It also includes a first voltage-dividing resistor, a filter capacitor and a second voltage-dividing resistor, the first voltage-dividing resistor is connected in series between the power quality indication terminal and the output terminal of the power supply chip, the filter capacitor is connected in series between the power quality indication terminal and the ground terminal, and the second voltage-dividing resistor is connected in parallel with the filter capacitor.

8. A method for starting a communication module, implemented based on the starting circuit of the communication module according to any one of claims 1 to 7, characterized in that: include: Monitoring whether the voltage signal output by the power supply chip meets a preset condition through a monitoring terminal of the control chip; When the monitoring end detects that the voltage signal meets a preset condition, the communication module is controlled to start through the control end of the control chip.

9. A vehicle-mounted wireless terminal, characterized in that: The vehicle-mounted wireless terminal includes a startup circuit of the communication module according to any one of claims 1-7.

10. A vehicle, characterized in that: The vehicle includes the vehicle-mounted wireless terminal according to claim 9.

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