Heating control system and electronic device

Abstract

The application discloses a heating control system and electronic equipment, and relates to the technical field of electronics and electricity, and comprises: a temperature control unit, which is connected with one end of a temperature resistor and is used for outputting a first logic control value according to the resistance value of the temperature resistor in a shutdown state; a processing unit, which is connected with the other end of the temperature resistor and is used for outputting a second logic control value according to the resistance value of the temperature resistor in a startup state; and a heating control unit, a first input end of the heating control unit is connected with an output end of the temperature control unit, a second input end of the heating control unit is connected with an output end of the processing unit, and an output end of the heating control unit is connected with a heating circuit, so that the heating control unit is used for controlling the switching state of the heating circuit according to the first logic control value or the second logic control value, the conventional consumer-grade memory device can also meet the requirements of an industrial-grade scene, the equipment cost is reduced, and the deployment restriction of a low-temperature scene of the industrial equipment is avoided.

Description

Technical Field

[0001] This application relates to the field of electronic and electrical technology, and in particular to a heating control system and electronic equipment. Background Technology

[0002] Currently, storage devices are generally suitable for operating temperatures ranging from -25°C to 85°C, meeting the conventional requirements of consumer electronics. However, in industrial applications, devices often need to withstand harsh environments ranging from -40°C to 85°C. Conventional consumer-grade storage devices are prone to data anomalies, response delays, or failures at extreme low temperatures, leading to decreased system reliability. Although industrial-grade storage devices can cover a wider temperature range, their reliance on special materials and complex packaging processes results in costs several times higher than conventional products, severely restricting the deployment of industrial equipment in low-temperature scenarios. Utility Model Content

[0003] The main objective of this application is to provide a heating control system and electronic device, aiming to overcome the technical problem of low-temperature performance limitations of storage modules while keeping costs under control.

[0004] To achieve the above objectives, this application proposes a heating control system, which includes:

[0005] The temperature control unit is connected to one end of the temperature resistor and is used to output the first logic control value based on the resistance value of the temperature resistor when the power is off.

[0006] The processing unit is connected to the other end of the temperature resistor and is used to output a second logic control value based on the resistance value of the temperature resistor when the power is on.

[0007] The heating control unit has a first input terminal connected to the output terminal of the temperature control unit, a second input terminal connected to the output terminal of the processing unit, and an output terminal connected to the heating circuit. It is used to control the switching state of the heating circuit according to the first logic control value or the second logic control value.

[0008] In one embodiment, the temperature control unit includes a first temperature control subunit and a second temperature control subunit, and the temperature resistor includes a first temperature resistor and a second temperature resistor.

[0009] The input terminal of the first temperature control subunit is connected to the first temperature resistor, the input terminal of the second temperature control subunit is connected to the second temperature resistor, and the output terminals of the first and second temperature control subunits are connected together.

[0010] The first temperature reference value of the first temperature control subunit is not equal to the second temperature reference value of the second temperature control subunit.

[0011] In one embodiment, the first temperature control subunit includes a first temperature control circuit, a second temperature control circuit, and a first OR gate logic unit;

[0012] The first temperature control circuit includes a first comparator, a first enable controller, and a first inverter. The inverting input of the first comparator is connected to a first temperature resistor, the non-inverting input of the first comparator is connected to a first temperature reference value, the output of the first comparator is connected to the input of the first enable controller, the output of the first enable controller is connected to the input of the first inverter, and the output of the first inverter is connected to the first input of a first OR gate logic unit.

[0013] The second temperature control circuit includes a second comparator, a second enable controller, and a second inverter. The inverting input of the second comparator is connected to the first temperature resistor, the non-inverting input of the second comparator is connected to the first temperature reference value, the output of the second comparator is connected to the input of the second enable controller, the output of the second enable controller is connected to the input of the second inverter, and the output of the second inverter is connected to the second input of the first OR gate logic.

[0014] In one embodiment, the second temperature control subunit includes a third temperature control circuit, a fourth temperature control circuit, and a second OR gate logic unit;

[0015] The third temperature control circuit includes a third comparator and a third enable controller. The inverting input of the third comparator is connected to the second temperature resistor, the non-inverting input of the third comparator is connected to the second temperature reference value, the output of the third comparator is connected to the input of the third enable controller, and the output of the third enable controller is connected to the first input of the second OR gate logic.

[0016] The fourth temperature control circuit includes a fourth comparator and a fourth enable controller. The inverting input of the fourth comparator is connected to the second temperature resistor, the non-inverting input of the fourth comparator is connected to the second temperature reference value, the output of the fourth comparator is connected to the input of the fourth enable controller, and the output of the fourth enable controller is connected to the second input of the second OR gate logic.

[0017] In one embodiment, the temperature control unit further includes a third OR gate logic unit;

[0018] The first input of the third OR gate is connected to the output of the first OR gate, and the second input of the third OR gate is connected to the output of the second OR gate.

[0019] In one embodiment, the processing unit includes an analog-to-digital converter and a control processor;

[0020] The input terminals of the analog-to-digital converter are connected to the first temperature resistor and the second temperature resistor, respectively, and the output terminal of the analog-to-digital converter is connected to the control processor.

[0021] In one embodiment, the heating control unit includes a fourth OR gate logic unit;

[0022] The first input of the fourth OR gate is connected to the first control output of the control processor, the second input of the fourth OR gate is connected to the output of the third OR gate, and the output of the fourth OR gate is connected to the heating circuit.

[0023] In one embodiment, the heating control system further includes a temperature control switch unit, which includes a third inverter, a first AND gate logic unit, a fifth enable controller, and a fourth inverter.

[0024] The input of the third inverter is connected to the second control output of the control processor, the output of the third inverter is connected to the first input of the first AND gate logic, the output of the first AND gate logic is connected to the input of the fifth enable controller, and the control terminal of the fifth enable controller is connected to the output of the fourth inverter.

[0025] The input terminal of the fourth inverter is connected to the output terminal of any comparator set in the first temperature control subunit, and the output terminal of the fifth enable controller is connected to the control terminal of each enable controller set in the temperature control unit.

[0026] In one embodiment, the heating control system further includes a switching unit, which includes a fifth inverter, a sixth inverter, a seventh inverter, a second AND gate logic unit, and a third AND gate logic unit.

[0027] The input terminal of the fifth inverter is connected to the power switch, and the output terminal of the fifth inverter is connected to the second input terminal of the first AND gate logic unit.

[0028] The input of the sixth inverter is connected to the power switch, the output of the sixth inverter is connected to the first input of the third AND gate logic, the input of the seventh inverter is connected to the output of any inverter in the first temperature control subunit, the output of the seventh inverter is connected to the first input of the second AND gate logic, the second input of the second AND gate logic is connected to the output of any enable controller in the second temperature control subunit, and the output of the second AND gate logic is connected to the second input of the third AND gate logic.

[0029] The output of the third AND gate logic is connected to the processing unit via the control terminal of the switching transistor, and the output of the switching transistor is grounded.

[0030] In addition, to achieve the above objectives, this application also provides an electronic device that includes the heating control system described above.

[0031] One or more technical solutions proposed in this application have at least the following technical effects:

[0032] A heating control system is proposed, comprising a temperature control unit connected to one end of a temperature resistor, used to output a first logic control value based on the resistance value of the temperature resistor in the off state; a processing unit connected to the other end of the temperature resistor, used to output a second logic control value based on the resistance value of the temperature resistor in the on state; and a heating control unit, the first input terminal of which is connected to the output terminal of the temperature control unit, the second input terminal of which is connected to the output terminal of the processing unit, and the output terminal of which is connected to a heating circuit, used to control the on / off state of the heating circuit based on the first or second logic control value.

[0033] This application proposes a heating control system capable of heating storage devices. When the electronic device containing the storage device is powered off, the temperature control unit monitors the temperature of the storage device in real time based on the resistance value collected from the temperature resistor, and outputs a corresponding first logic control value according to the detected temperature. If the electronic device containing the storage device is powered on, the processing unit collects the resistance value of the temperature resistor, monitors the temperature of the storage device in real time, and outputs a corresponding second logic control value according to the detected temperature. The heating control unit controls the switching state of the heating circuit that heats the storage device according to the first or second logic control value, thereby enabling heating of the storage device when it is at a low temperature, ensuring that the storage is always within the temperature range required for normal operation. This allows conventional consumer-grade storage devices to meet the requirements of industrial-grade scenarios, reduces equipment costs, and avoids the deployment limitations of industrial equipment in low-temperature scenarios. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a simplified structural diagram of the heating control system of this application;

[0037] Figure 2 This is a schematic diagram of an implementable structure of the heating control system of this application;

[0038] Figure 3 This is a flowchart illustrating the heating control logic of this application.

[0039] Explanation of icon numbers:

[0040] 10. Temperature control unit; OR1, first OR gate logic; U1, first comparator; ENB1, first enable controller; NOT1, first inverter; U2, second comparator; ENB2, second enable controller; NOT2, second inverter; OR2, second OR gate logic; U3, third comparator; ENB3, third enable controller; U4, fourth comparator; ENB4, fourth enable controller; OR3, third OR gate logic;

[0041] 20. Processing unit; ADC (Analog-to-Digital Converter); GPIO (Input / Output Terminals);

[0042] 30. Heating control unit; OR4. Fourth OR gate logic unit;

[0043] 40. Heating circuit;

[0044] 50. Temperature control switch unit; NOT3. Third inverter; AND1. First AND gate logic unit; ENB5. Fifth enable controller; NOT4. Fourth inverter;

[0045] 60. Switching unit; NOT5. Fifth inverter; NOT6. Sixth inverter; NOT7. Seventh inverter; AND2. Second AND gate logic unit; AND3. Third AND gate logic unit;

[0046] R, temperature resistor; R1, first temperature resistor; R2, second temperature resistor; S, power switch; Q1, switching transistor; -40℃ vref, first reference voltage value; -25℃ vref, second reference voltage value.

[0047] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0049] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0050] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0051] Based on this, the embodiments of this application provide a heating control system, referring to... Figure 1 , Figure 1 This is a simplified structural diagram of the heating control system of this application.

[0052] Reference Figure 1 As shown, the heating control system includes:

[0053] Temperature control unit 10 is connected to one end of temperature resistor R and is used to output a first logic control value based on the resistance value of temperature resistor R when the device is off. Processing unit 20 is connected to the other end of temperature resistor R and is used to output a second logic control value based on the resistance value of temperature resistor R when the device is on. Heating control unit 30 has a first input terminal connected to the output terminal of temperature control unit 10, a second input terminal connected to the output terminal of processing unit 20, and an output terminal connected to heating circuit 40. It is used to control the on / off state of heating circuit 40 based on the first or second logic control value. Here, "off state" and "on state" refer to the states of the electronic equipment.

[0054] This embodiment sets up two units to detect the temperature of the storage device in real time. One is a temperature control unit 10 that detects the temperature when the electronic device is in a powered-off state but the power button is pressed, and the other is a temperature control unit 10 that detects the temperature when the electronic device is in a powered-on state.

[0055] The reason for setting up the temperature control unit 10 is that when the electronic device is in the off state, the processing unit 20 is obviously in a stopped state. However, in order to ensure that the storage device operates within a safe temperature range when the electronic device switches from the off state to the on state, even when the electronic device is in the off state, when the power button of the electronic device is pressed, it is necessary to detect the current temperature of the storage device in real time, and dynamically control the switching state of the heating circuit 40 to selectively heat the storage device based on the detected temperature.

[0056] In addition, when the electronic device is powered on, the reason for switching to the processing unit 20 to control the heating circuit 40 is that the temperature change in the powered-on state is more volatile than the temperature change in the powered-off state. Therefore, in order to ensure low-latency triggering of heating control and ensure the efficiency of heating control, it is necessary to switch to the processing unit 20 for heating control.

[0057] Both the temperature control unit 10 and the processing unit 20 determine the current temperature of the storage device based on the detected resistance value of the temperature resistor R, and output the corresponding logic control value to the heating control unit 30 based on the temperature. This allows the heating control unit 30 to dynamically control the operating state of the heating circuit 40 and selectively heat the storage device according to the logic control value. This enables conventional consumer-grade storage devices to operate in industrial-grade low-temperature environments, avoiding the increased device costs associated with using industrial-grade storage devices. It also expands the application scenarios of conventional consumer-grade storage devices and avoids the limitations of low-temperature deployment in industrial electronic devices due to high device costs.

[0058] It should be noted that, depending on the required temperature value, the temperature control unit 10 can be configured to include a first temperature control subunit and a second temperature control subunit, and the temperature resistor R includes a first temperature resistor R1 and a second temperature resistor R2; the input terminal of the first temperature control subunit is connected to the first temperature resistor R1, the input terminal of the second temperature control subunit is connected to the second temperature resistor R2, and the output terminals of the first temperature control subunit and the second temperature control subunit are connected together; wherein, the first temperature reference value of the first temperature control subunit is not equal to the second temperature reference value of the second temperature control subunit.

[0059] Based on the operating temperature ranges of conventional consumer-grade storage devices and industrial-grade storage devices mentioned in the background of this application, this embodiment sets the temperature control unit 10 into two temperature control sub-units, namely a first temperature control sub-unit and a second temperature control sub-unit. At the same time, a first temperature resistor R1 corresponding to the lower limit of the operating temperature range of the industrial-grade storage device and a second temperature resistor R2 corresponding to the lower limit of the operating temperature range of the conventional consumer-grade storage device are set.

[0060] The device is equipped with a first temperature control subunit to detect a first temperature resistor R1, thereby determining whether the storage device is operating within the operating temperature range of industrial-grade storage devices and whether the storage device can operate normally. The device is also equipped with a second temperature control subunit to detect a second temperature resistor R2, thereby determining whether the storage device is operating within the operating temperature range of conventional consumer-grade storage devices and whether the electronic device can be turned on normally.

[0061] If the first temperature control subunit detects that the current temperature of the storage device is lower than the lower limit of the operating temperature range of industrial-grade storage devices, it indicates that the current temperature of the storage device is too low and exceeds the safe operating temperature range of the storage device. The storage device may have a fault. Therefore, the heating circuit 40 is not started to heat it to avoid equipment abnormalities caused by the use of faulty devices.

[0062] If the first temperature control subunit detects that the current temperature of the storage device is higher than the lower limit of the operating temperature range of industrial-grade storage devices, and the second temperature control subunit detects that the current temperature of the storage device is lower than the lower limit of the operating temperature range of conventional consumer-grade storage devices, it indicates that the current storage device can operate normally, but there is a problem of the operating temperature being too low. Therefore, it needs to be heated to the operating temperature range of conventional consumer-grade storage devices to ensure that the storage device can be used normally when the electronic device is put into the power-on state.

[0063] If the second temperature control subunit detects that the current temperature during storage is higher than the lower limit of the operating temperature range of conventional consumer-grade storage devices, it indicates that the current storage device is operating in a temperature environment that allows it to function normally. At this time, the electronic device can be controlled to enter the power-on state and switch to the processing unit 20 to efficiently and accurately adjust the temperature of the storage device.

[0064] In one feasible implementation, the heating control system proposed in this embodiment can be specifically referred to... Figure 2 As shown.

[0065] The first temperature control subunit includes a first temperature control circuit, a second temperature control circuit, and a first OR gate logic unit OR1.

[0066] The first temperature control circuit includes a first comparator U1, a first enable controller ENB1, and a first inverter NOT1. The inverting input of the first comparator U1 is connected to the first temperature resistor R1, the non-inverting input of the first comparator U1 is connected to the first temperature reference value, the output of the first comparator U1 is connected to the input of the first enable controller ENB1, the output of the first enable controller ENB1 is connected to the input of the first inverter NOT1, and the output of the first inverter NOT1 is connected to the first input of the first OR gate logic OR1. The second temperature control circuit includes a second comparator U2, a second enable controller ENB2, and a second inverter NOT2. The inverting input of the second comparator U2 is connected to the first temperature resistor R1, the non-inverting input of the second comparator U2 is connected to the first temperature reference value, the output of the second comparator U2 is connected to the input of the second enable controller ENB2, the output of the second enable controller ENB2 is connected to the input of the second inverter NOT2, and the output of the second inverter NOT2 is connected to the second input of the first OR gate logic OR1.

[0067] The second temperature control subunit includes a third temperature control circuit, a fourth temperature control circuit, and a second OR gate logic OR2. The third temperature control circuit includes a third comparator U3 and a third enable controller ENB3. The inverting input of the third comparator U3 is connected to the second temperature resistor R2, the non-inverting input of the third comparator U3 is connected to the second temperature reference value, the output of the third comparator U3 is connected to the input of the third enable controller ENB3, and the output of the third enable controller ENB3 is connected to the first input of the second OR gate logic OR2. The fourth temperature control circuit includes a fourth comparator U4 and a fourth enable controller ENB4. The inverting input of the fourth comparator U4 is connected to the second temperature resistor R2, the non-inverting input of the fourth comparator U4 is connected to the second temperature reference value, the output of the fourth comparator U4 is connected to the input of the fourth enable controller ENB4, and the output of the fourth enable controller ENB4 is connected to the second input of the second OR gate logic OR2.

[0068] The temperature control unit 10 also includes a third OR gate logic OR3; the first input terminal of the third OR gate logic OR3 is connected to the output terminal of the first OR gate logic OR1, and the second input terminal of the third OR gate logic OR3 is connected to the output terminal of the second OR gate logic OR2.

[0069] The processing unit 20 includes an analog-to-digital converter (ADC) and a control processor; the input terminal of the ADC is connected to the first temperature resistor R1 and the second temperature resistor R2 respectively, and the output terminal of the ADC is connected to the control processor.

[0070] The heating control unit 30 includes a fourth OR gate logic OR4; the first input terminal of the fourth OR gate logic OR4 is connected to the first control output terminal of the control processor, the second input terminal of the fourth OR gate logic OR4 is connected to the output terminal of the third OR gate logic OR3, and the output terminal of the fourth OR gate logic OR4 is connected to the heating circuit 40.

[0071] The heating control system also includes a temperature control switch unit 50, which includes a third inverter NOT3, a first AND gate logic AND1, a fifth enable controller ENB5, and a fourth inverter NOT4. The input terminal of the third inverter NOT3 is connected to the second control output terminal of the control processor, the output terminal of the third inverter NOT3 is connected to the first input terminal of the first AND gate logic AND1, the output terminal of the first AND gate logic AND1 is connected to the input terminal of the fifth enable controller ENB5, and the control terminal of the fifth enable controller ENB5 is connected to the output terminal of the fourth inverter NOT4. The input terminal of the fourth inverter NOT4 is connected to the output terminal of any comparator set in the first temperature control subunit, and the output terminal of the fifth enable controller ENB5 is connected to the control terminals of each enable controller set in the temperature control unit 10.

[0072] The heating control system also includes a switching unit 60, which comprises a fifth inverter NOT5, a sixth inverter NOT6, a seventh inverter NOT7, a second AND gate AND2, and a third AND gate AND3. The input of the fifth inverter NOT5 is connected to the power-on switch S, and its output is connected to the second input of the first AND gate AND1. The input of the sixth inverter NOT6 is connected to the power-on switch S, and its output is connected to the first input of the third AND gate AND3. The input terminal of the seventh inverter NOT7 is connected to the output terminal of any inverter in the first temperature control subunit. The output terminal of the seventh inverter NOT7 is connected to the first input terminal of the second AND gate logic AND2. The second input terminal of the second AND gate logic AND2 is connected to the output terminal of any enable controller in the second temperature control subunit. The output terminal of the second AND gate logic AND2 is connected to the second input terminal of the third AND gate logic AND3. The output terminal of the third AND gate logic AND3 is connected to the processing unit 20 via the control terminal of the switch Q1. The output terminal of the switch Q1 is grounded.

[0073] Still based on the operating temperature ranges of the two types of storage devices mentioned in the background technology, the detection temperature of the first temperature control subunit is set to the lower limit of the operating temperature range of industrial-grade storage devices -40℃, and the detection temperature of the second temperature control subunit is set to the lower limit of the operating temperature range of conventional consumer-grade storage devices -25℃. Therefore, based on... Figure 2The circuit structure shown can implement the heating control logic as follows: Figure 3 The flowchart shown is shown.

[0074] Specifically: when the power button of an electronic device is pressed (i.e. Figure 3 In step S1), the temperature control unit 10 begins to acquire the current operating temperature of the storage device (i.e., Figure 3 Step S2). ① Determine whether the current operating temperature of the storage device detected by the first temperature control subunit in the temperature control unit 10 is lower than -40℃ (i.e., Figure 3 If step S3 is true, it indicates that the storage device has a device fault. Based on this storage device, the electronic device operating on it is highly likely to have operational abnormalities. Therefore, there is no need to perform heating or detection operations on the storage device. At this time, the temperature control unit 10 will output a logic control value indicating that the temperature control unit 10 is turned off to the temperature control switch unit 50. This causes the temperature control switch unit 50 to control the temperature control unit 10 to enter the off state based on the logic control value. In the off state, the output terminal of the temperature control unit 10 defaults to outputting a first logic control value indicating that the heating circuit 40 is turned off to the heating control unit 30. This causes the heating control unit 30 to turn off the heating circuit 40 (i.e., based on the first logic control value)... Figure 3 In step S4), and outputting a logic control value to shut down the electronic device to the switching unit 60, to prevent the electronic device from entering the power-on state when the storage device is in an abnormal temperature state; ② If the first temperature control subunit in the temperature control unit 10 detects that the current operating temperature of the storage device is higher than -40℃, it outputs a first logic control value representing the opening of the heating circuit 40 to the heating control unit 30, so that the heating control unit 30 opens the heating circuit 40 based on the first logic control value (i.e. Figure 3 In step S5), it is determined whether the current operating temperature of the storage device detected by the second temperature control subunit is lower than -25℃ (i.e., Figure 3 If the condition is met (in step S6), then a first logic control value representing the activation of the heating circuit 40 is output to the heating control unit 30, so that the heating control unit 30 activates the heating circuit 40 based on the first logic control value. Figure 3 In step S5), and outputting a logic control value to shut down the electronic device to the switching unit 60, to prevent the electronic device from entering the power-on state when the storage device is not within the operating temperature range of a conventional consumer-grade storage device, thus avoiding operational abnormalities; ③ If the second temperature control subunit in the temperature control unit 10 detects that the current operating temperature of the storage device is higher than -25℃, it outputs a logic control value representing the power-on of the electronic device to the switching unit 60 to control the electronic device to enter the power-on state (i.e., Figure 3In step S7), the processing unit 20 in the powered-on electronic device will synchronously enter the running state. At this time, the processing unit 20 will output a logic control value indicating that the temperature control unit 10 is turned off to the temperature control switch unit 50, so as to take over the switching control operation of the heating circuit 40 (i.e., Figure 3 Step S8); ④ The processing unit 20 acquires the resistance value of the temperature resistor R in real time through the analog-to-digital converter (ADC), and converts the resistance value into the corresponding temperature value of the storage device through the control processor (i.e., Figure 3 In step S9), determine whether the converted temperature value is less than -20℃ (i.e. Figure 3 If the step S10 is correct, then the heating operation of the heating circuit 40 is maintained (i.e., ...). Figure 3 If not in step S11, then determine whether the converted temperature value is greater than -10℃ (i.e. Figure 3 If not in step S12, then maintain the heating operation of the heating circuit 40 (i.e., Figure 3 If the step S11 is correct, then the control processor outputs a second logic control value representing the shutdown of the heating circuit 40 to the heating control unit 30, so that the heating control unit 30 shuts down the heating circuit 40 based on the second logic control value. Figure 3 Step S13 in the process.

[0075] The reason for setting the heating circuit 40 to be controlled based on the processing unit 20 is that the heating circuit 40 is activated when the temperature of the storage device is detected to be less than or equal to -20℃ or greater than -20℃, but less than or equal to -10℃. This is to take into account the hysteresis of heating time and the fact that the temperature resistance R is located outside the storage device. Therefore, a certain margin is set for the temperature of the heating circuit 40 within the safe operating temperature range of the storage device to ensure continuous and stable normal operation during storage. The set detection temperature can be modified according to actual needs; the specific temperature value in this embodiment is only an example.

[0076] To better understand based on Figure 2 The circuit logic that can be implemented by the circuit structure shown will be illustrated in this embodiment based on the temperature values ​​of three different storage devices.

[0077] It should be noted in advance that when the power button is pressed, the power switch S in the corresponding switching unit 60 is closed. At this time, the input terminals of the fifth inverter NOT5 and the sixth inverter NOT6 are pulled down, so the output terminals of the fifth inverter NOT5 and the sixth inverter NOT6 output a value of "1". The "1" value of the fifth inverter NOT5 is output to the second input of the first AND gate logic AND1. Since the first input of the first AND gate logic AND1 is connected to the control processor of the processing unit 20 via the third inverter NOT3, when the processing unit 20 is in the power-off state, the input / output terminal GPIO of the control processor outputs a "0" value by default. This "0" value is output to the first input of the first AND gate logic AND1 via the third inverter NOT3. Therefore, the first AND gate logic AND1 will output a "1" value to the input of the fifth enable controller ENB5. By controlling the control terminal of the fifth enable controller ENB5, it is possible to control whether the fifth enable controller ENB5 outputs a "1" value to the temperature control unit 10, that is, whether the temperature control unit 10 is turned on.

[0078] (1) Assuming the current temperature of the storage device is -45℃, the values ​​output by each logic gate can be referenced.

[0079] As shown in Table 1.

[0080] in in out Fourth inverter NOT4 1 / 0 Third OR gate logic OR3 / / 0 The fourth OR gate logic unit OR4 0 0 0 Seventh inverter NOT7 1 / 0 Sixth inverter NOT6 0 / 1 The second AND gate logic AND2 0 0 0 The third AND gate logic AND3 1 0 0

[0081] Table 1

[0082] The inverting inputs of the first comparator U1 and the second comparator U2 convert the resistance value of the first temperature resistor R1 into a corresponding voltage value, and then compare it with the first reference voltage value -40℃vref, which reflects the first temperature reference value of -40℃, connected from the non-inverting input. Since the current temperature of the storage device is -45℃, the first comparator U1 and the second comparator U2 will output a value of "1". The output of the second comparator U2 is connected to the input of the fourth inverter NOT4, so this value of "1" will be inverted to a value of "0" by the fourth inverter NOT4 and output to the control terminal of the fifth enable controller ENB5. This prevents the fifth enable controller ENB5 from outputting a value of "1" to the first enable controller ENB1 and the second comparator U2. In the four enable controllers ENB4, since the comparators in the temperature control unit 10 all need to be enabled to output the corresponding logic control value to the fourth OR gate logic OR4, when none of the first enable controllers ENB1 to the fourth enable controllers ENB4 can input a "1" value to output the corresponding logic control value (i.e., the temperature control unit 10 enters the off state), the third OR gate logic OR3 outputs a "0" value to the second input terminal of the fourth OR gate logic OR4 by default. Since the processing unit 20 is in the off state, it outputs a "0" value to the first input terminal of the fourth OR gate logic OR4 by default. Therefore, the fourth OR gate logic OR4 will output a "0" value to the heating circuit 40, turning off the heating operation of the heating circuit 40 on the storage device.

[0083] It should be noted that, according to Figure 2 It is known that the "0" value output by the second inverter NOT2 is also fed into the second AND gate AND2, and the "1" value output by the fourth enable controller ENB4 is also fed into the seventh inverter NOT7. Therefore, the second AND gate AND2 will output a "0" value to the second input terminal of the third AND gate AND3. When the switch button is pressed, the input terminal of the sixth inverter NOT6 is pulled down, and the output value is "1" to the third AND gate AND3. Therefore, the third AND gate AND3 will output a "0" value to the control terminal of the switch Q1, so that the switch Q1 remains in the off state, preventing the electronic device from entering the power-on state when the storage device is not operating within the safe temperature range.

[0084] (2) Assuming the current temperature of the storage device is -35℃, the values ​​output by each logic gate can be referenced.

[0085] As shown in Table 2.

[0086] in in out First inverter NOT1 0 / 1 Second inverter NOT2 0 / 1 Fourth inverter NOT4 0 / 1 First OR gate logic OR1 1 1 1 The second OR gate logic OR2 1 1 1 Third OR gate logic OR3 1 1 1 The fourth OR gate logic unit OR4 0 1 1 Seventh inverter NOT7 1 / 0 Sixth inverter NOT6 0 / 1 The second AND gate logic AND2 0 1 0 The third AND gate logic AND3 1 0 0

[0087] Table 2

[0088] The inverting inputs of the first comparator U1 and the second comparator U2 convert the resistance value of the first temperature resistor R1 into a corresponding voltage value, and then compare it with the first reference voltage value -40℃vref, which reflects the first temperature reference value of -40℃, connected from the non-inverting input. Since the current temperature of the storage device is -35℃, the first comparator U1 and the second comparator U2 will output a value of "0". The output of the second comparator U2 is connected to the input of the fourth inverter NOT4, so the "0" value will be inverted to a value of "1" by the fourth inverter NOT4 and output to the control terminal of the fifth enable controller ENB5, so that the fifth enable controller ENB5 conducts and outputs a value of "1" to the first enable controller ENB1 to the fourth enable controller ENB4. At this time, the first enable controller ENB1 and the second enable controller ENB2 are respectively connected to the "0" value output by the first comparator U1 and the second comparator U2, and are fed into the first inverter NOT1 and the second inverter NOT2 for inversion, outputting the "1" value to the first OR gate logic OR1, so that the first OR gate logic OR1 outputs the "1" value.

[0089] The inverting inputs of the third comparator U3 and the fourth comparator U4 convert the resistance value of the second temperature resistor R2 into a corresponding voltage value, and then compare it with the second reference voltage value -25℃vref, which reflects the second temperature reference value of -25℃, connected from the non-inverting input. Since the current temperature of the storage device is -35℃, the third comparator U3 and the fourth comparator U4 will output a "1" value at this time. Through the fourth enable controller ENB4 and the fifth enable controller ENB5, the "1" value is passed to the input of the second OR gate logic OR2, causing it to output a "1" value.

[0090] The third OR gate logic OR3 outputs a "1" value to the second input of the fourth OR gate logic OR4 based on the "1" values ​​connected to its two input terminals. When the first input of the fourth OR gate logic OR4 is connected to a "0" value by default, the output of the fourth OR gate logic OR4 outputs a "1" value to control the heating circuit 40 to start the heating operation of the storage device.

[0091] It should be noted that, according to Figure 2It is known that the "1" value output by the second inverter NOT2 will also be fed into the second AND gate AND2, and the "1" value output by the fourth enable controller ENB4 will also be fed into the seventh inverter NOT7. Therefore, the second AND gate AND2 will output a "0" value to the second input terminal of the third AND gate AND3. When the switch button is pressed, the input terminal of the sixth inverter NOT6 is pulled down, and the output value "1" is fed into the third AND gate AND3. Therefore, at this time, the third AND gate AND3 will output a "0" value to the control terminal of the switch Q1, so that the switch Q1 remains in the off state, preventing the electronic device from entering the power-on state when the storage device is not operating within the safe temperature range.

[0092] (3) Assuming the current temperature of the storage device is -20℃, the values ​​output by each logic gate can be referenced.

[0093] As shown in Table 3.

[0094]

[0095]

[0096] Table 3

[0097] The inverting inputs of the first comparator U1 and the second comparator U2 convert the resistance value of the first temperature resistor R1 into a corresponding voltage value, and then compare it with the first reference voltage value -40℃vref, which reflects the first temperature reference value of -40℃, connected from the non-inverting input. Since the current temperature of the storage device is -20℃, the first comparator U1 and the second comparator U2 will output a value of "0". The output of the second comparator U2 is connected to the input of the fourth inverter NOT4, so the "0" value will be inverted to a value of "1" by the fourth inverter NOT4 and output to the control terminal of the fifth enable controller ENB5, so that the fifth enable controller ENB5 conducts and outputs a value of "1" to the first enable controller ENB1 to the fourth enable controller ENB4. At this time, the first enable controller ENB1 and the second enable controller ENB2 are respectively connected to the "0" value output by the first comparator U1 and the second comparator U2, and are fed into the first inverter NOT1 and the second inverter NOT2 for inversion, outputting the "1" value to the first OR gate logic OR1, so that the first OR gate logic OR1 outputs the "1" value.

[0098] The inverting inputs of the third comparator U3 and the fourth comparator U4 convert the resistance value of the second temperature resistor R2 into a corresponding voltage value, and then compare it with the second reference voltage value -25℃vref, which reflects the second temperature reference value of -25℃, connected from the non-inverting input. Since the current temperature of the storage device is -20℃, the third comparator U3 and the fourth comparator U4 will output a "0" value at this time. Through the conducting fourth enable controller ENB4 and the fifth enable controller ENB5, the "0" value is passed to the input of the second OR gate logic OR2, causing it to output a "0" value.

[0099] The third OR gate logic OR3 outputs a "1" value to the second input of the fourth OR gate logic OR4 based on the "1" and "0" values ​​connected to its two input terminals respectively. When the first input terminal of the fourth OR gate logic OR4 is connected to a "0" value by default, the output terminal of the fourth OR gate logic OR4 outputs a "1" value to control the heating circuit 40 to start the heating operation of the storage device.

[0100] It should be noted that, according to Figure 2 It is known that the "1" value output by the second inverter NOT2 will also be fed into the second AND gate logic AND2, and the "0" value output by the fourth enable controller ENB4 will also be fed into the seventh inverter NOT7. Therefore, the second AND gate logic AND2 will output a "1" value to the second input terminal of the third AND gate logic AND3. When the switch button is pressed, the input terminal of the sixth inverter NOT6 is pulled down, and the output "1" value is sent to the third AND gate logic AND3. Therefore, at this time, the third AND gate logic AND3 will output a "1" value to the control terminal of the switch Q1, so that the switch Q1 is turned on, grounding the processing unit 20 and controlling the electronic device to enter the power-on state.

[0101] (4) Referring to Table 4, after the electronic device enters the power-on state, the processing unit 20 outputs a "1" value to the third inverter NOT3, causing the third inverter NOT3 to output a "0" value to the first input terminal of the first AND gate logic AND1. When the second input terminal of the first AND gate logic AND1 is connected to a "1" value, the first AND gate logic AND1 will output a "0" value to the input terminal of the fifth enable controller ENB5, thereby turning off the temperature control unit 10. The analog-to-digital converter ADC in the processing unit 20 obtains the resistance value of the temperature resistor R in real time and determines whether the current temperature of the storage device needs to be heated based on the resistance value. If it is needed, it directly outputs a "1" value to the first input terminal of the fourth OR gate logic OR4 through the input / output terminal GPIO, causing the fourth OR gate logic OR4 to output a "1" value to control the heating circuit 40 to turn on; if it is not needed, it directly outputs a "0" value to the first input terminal of the fourth OR gate logic OR4 through the input / output terminal GPIO, causing the fourth OR gate logic OR4 to output a "0" value to control the heating circuit 40 to turn off.

[0102] in in out Third inverter NOT3 1 / 0 First AND gate logic AND1 0 1 0

[0103] Table 4

[0104] Furthermore, this embodiment also proposes an electronic device that includes the heating control system described above.

[0105] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A heating control system, characterized in that, The heating control system includes: A temperature control unit is connected to one end of a temperature resistor and is used to output a first logic control value based on the resistance value of the temperature resistor when the power is off. A processing unit, which is connected to the other end of the temperature resistor, is used to output a second logic control value according to the resistance value of the temperature resistor when the power is on. A heating control unit, wherein the first input terminal of the heating control unit is connected to the output terminal of the temperature control unit, the second input terminal of the heating control unit is connected to the output terminal of the processing unit, and the output terminal of the heating control unit is connected to the heating circuit, and is used to control the switching state of the heating circuit according to the first logic control value or the second logic control value.

2. The heating control system as described in claim 1, characterized in that, The temperature control unit includes a first temperature control subunit and a second temperature control subunit, and the temperature resistor includes a first temperature resistor and a second temperature resistor. The input terminal of the first temperature control subunit is connected to the first temperature resistor, the input terminal of the second temperature control subunit is connected to the second temperature resistor, and the output terminals of the first temperature control subunit and the second temperature control subunit are connected together. Wherein, the first temperature reference value of the first temperature control subunit is not equal to the second temperature reference value of the second temperature control subunit.

3. The heating control system as described in claim 2, characterized in that, The first temperature control subunit includes a first temperature control circuit, a second temperature control circuit, and a first OR gate logic unit; The first temperature control circuit includes a first comparator, a first enable controller, and a first inverter. The inverting input of the first comparator is connected to the first temperature resistor, the non-inverting input of the first comparator is connected to the first temperature reference value, the output of the first comparator is connected to the input of the first enable controller, the output of the first enable controller is connected to the input of the first inverter, and the output of the first inverter is connected to the first input of the first OR gate logic. The second temperature control circuit includes a second comparator, a second enable controller, and a second inverter. The inverting input of the second comparator is connected to the first temperature resistor, the non-inverting input of the second comparator is connected to the first temperature reference value, the output of the second comparator is connected to the input of the second enable controller, the output of the second enable controller is connected to the input of the second inverter, and the output of the second inverter is connected to the second input of the first OR gate logic.

4. The heating control system as described in claim 3, characterized in that, The second temperature control subunit includes a third temperature control circuit, a fourth temperature control circuit, and a second OR gate logic unit; The third temperature control circuit includes a third comparator and a third enable controller. The inverting input of the third comparator is connected to the second temperature resistor, the non-inverting input of the third comparator is connected to the second temperature reference value, the output of the third comparator is connected to the input of the third enable controller, and the output of the third enable controller is connected to the first input of the second OR gate logic. The fourth temperature control circuit includes a fourth comparator and a fourth enable controller. The inverting input of the fourth comparator is connected to the second temperature resistor, the non-inverting input of the fourth comparator is connected to the second temperature reference value, the output of the fourth comparator is connected to the input of the fourth enable controller, and the output of the fourth enable controller is connected to the second input of the second OR gate logic.

5. The heating control system as described in claim 4, characterized in that, The temperature control unit also includes a third OR gate logic unit; The first input terminal of the third OR gate logic is connected to the output terminal of the first OR gate logic, and the second input terminal of the third OR gate logic is connected to the output terminal of the second OR gate logic.

6. The heating control system as described in claim 5, characterized in that, The processing unit includes an analog-to-digital converter and a control processor; The input terminals of the analog-to-digital converter are connected to the first temperature resistor and the second temperature resistor, respectively, and the output terminal of the analog-to-digital converter is connected to the control processor.

7. The heating control system as described in claim 6, characterized in that, The heating control unit includes a fourth OR gate logic unit; The first input terminal of the fourth OR gate logic is connected to the first control output terminal of the control processor, the second input terminal of the fourth OR gate logic is connected to the output terminal of the third OR gate logic, and the output terminal of the fourth OR gate logic is connected to the heating circuit.

8. The heating control system as described in claim 7, characterized in that, The heating control system further includes a temperature control switch unit, which includes a third inverter, a first AND gate logic unit, a fifth enable controller, and a fourth inverter. The input terminal of the third inverter is connected to the second control output terminal of the control processor, the output terminal of the third inverter is connected to the first input terminal of the first AND gate logic, the output terminal of the first AND gate logic is connected to the input terminal of the fifth enable controller, and the control terminal of the fifth enable controller is connected to the output terminal of the fourth inverter. The input terminal of the fourth inverter is connected to the output terminal of any comparator set in the first temperature control subunit, and the output terminal of the fifth enable controller is connected to the control terminal of each enable controller set in the temperature control unit.

9. The heating control system as described in claim 8, characterized in that, The heating control system further includes a switching unit, which includes a fifth inverter, a sixth inverter, a seventh inverter, a second AND gate logic unit, and a third AND gate logic unit. The input terminal of the fifth inverter is connected to the power switch, and the output terminal of the fifth inverter is connected to the second input terminal of the first AND gate logic unit. The input terminal of the sixth inverter is connected to the power switch, the output terminal of the sixth inverter is connected to the first input terminal of the third AND gate logic, the input terminal of the seventh inverter is connected to the output terminal of any inverter in the first temperature control subunit, the output terminal of the seventh inverter is connected to the first input terminal of the second AND gate logic, the second input terminal of the second AND gate logic is connected to the output terminal of any enable controller in the second temperature control subunit, and the output terminal of the second AND gate logic is connected to the second input terminal of the third AND gate logic. The output of the third AND gate logic is connected to the processing unit via the control terminal of the switching transistor, and the output of the switching transistor is grounded.

10. An electronic device, characterized in that, The electronic device includes a heating control system as described in any one of claims 1 to 9.

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