CN114188917A - Communication equipment working environment temperature control circuit and communication equipment - Google Patents
Communication equipment working environment temperature control circuit and communication equipment Download PDFInfo
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- CN114188917A CN114188917A CN202210119953.4A CN202210119953A CN114188917A CN 114188917 A CN114188917 A CN 114188917A CN 202210119953 A CN202210119953 A CN 202210119953A CN 114188917 A CN114188917 A CN 114188917A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/04—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
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Abstract
The application relates to a communication equipment working environment temperature control circuit and communication equipment. A temperature control circuit of a working environment of communication equipment comprises a power supply, a temperature detection device, a system function device, a first switch component, a second switch component and a heating load. The temperature detection chip is arranged in the communication equipment working environment temperature control circuit to set the preset temperature, when the environment temperature is lower than the preset temperature, the control signal controls the first switch component to be disconnected, the system function device stops working, the control signal controls the second switch component to be closed, and the heating load heats. The working environment control circuit of the communication equipment enables the communication equipment to be started normally under a low-temperature environment, improves the environment temperature range suitable for the communication equipment, and improves the selectivity of a chip in the communication equipment.
Description
Technical Field
The application relates to the technical field of communication equipment, in particular to a temperature control circuit of a working environment of communication equipment and the communication equipment.
Background
The communication device includes hardware and software, wherein the hardware is a device which is connected by various electronic components through a certain relationship to realize a specific function. In order to ensure that the electronic components can work normally and safely, a certain temperature range is specified, and the environmental working temperature range of the electronic components determines the environmental working temperature range of the communication equipment.
The FC optical fiber channel has the characteristics of high transmission speed, low delay, long transmission distance, high reliability and the like, and the communication equipment with the FC-AE-1553 protocol function is generally applied to the aerospace electronic field and the military field. Therefore, the ambient operating temperature range for such communication devices is highly desirable, typically below-40 ℃.
In the conventional technology, as long as an external power supply supplies power, a power chip inside the board card outputs direct-current voltages required by various chips in the board card, and after the various chips inside the board card acquire the corresponding direct-current voltages, if the environment temperature is within the environment working range of all the chips in the board card, the communication equipment can be started normally. However, in a low-temperature environment, temperature-sensitive chips such as a CPU, a large-scale programmable FPGA chip, and a communication chip may not be able to withstand the current low-temperature environment, and thus, the communication device cannot be started normally.
Disclosure of Invention
Therefore, it is necessary to provide a temperature control circuit for a working environment of a communication device and the communication device, aiming at the problem that in a low-temperature environment, a temperature sensitive chip in the communication device cannot bear low temperature, so that the communication device cannot be normally started, and further the communication device cannot normally work in the prior art.
A communication device operating environment temperature control circuit includes:
a power supply;
the temperature detection device is used for detecting the ambient temperature of the communication equipment and outputting a control signal;
the temperature detection device comprises a system function device and a first switch assembly, wherein two ends of the first switch assembly are respectively connected with the system function device and the power supply, the first switch assembly is also connected with the temperature detection device, and the control signal is used for controlling the on-off state of the first switch assembly;
the two ends of the second switch assembly are respectively connected with the heating load and the power supply, the second switch assembly is also connected with the temperature detection device, and the control signal is used for controlling the on-off state of the second switch assembly;
when the ambient temperature detected by the temperature detection device is lower than the preset temperature, the control signal controls the first switch component to be switched off and controls the second switch component to be switched on, and the heating load heats.
In one embodiment, the first switch assembly comprises:
the two ends of the first switch are respectively connected with the system function device and the power supply, the first switch is also connected with the temperature detection device, and the control signal is used for controlling the on-off state of the first switch;
the second switch assembly includes:
the two ends of the second switch are respectively connected with the heating load and the power supply;
an inverter connected between the temperature detection device and the second switch;
the control signal is high level or low level;
the first switch is closed under the control of a high level signal, and the first switch is opened under the control of a low level signal;
the second switch is closed under the control of a high level signal, and the second switch is opened under the control of a low level signal.
In one embodiment, the communication device operating environment temperature control circuit further comprises:
the first power supply control device is connected between the first switch and the system function device and is used for controlling and inputting the voltage of the system function device;
and the second power supply control device is connected with the temperature detection device and the power supply, and is used for controlling and inputting the voltage of the temperature detection device.
In one embodiment, the communication device operating environment temperature control circuit further comprises:
and the alarm device is connected between the temperature detection device and the power supply and used for giving an alarm when the ambient temperature detected by the temperature detection device is less than the preset temperature.
In one embodiment, the temperature detection device further includes:
the first temperature detection device is connected with the second power supply control device and used for detecting the first environmental temperature of the communication equipment and outputting a first control signal, and the second power supply control device is used for controlling the voltage input into the first temperature detection device;
the second temperature detection device is connected with the second power supply control device and used for detecting the second environment temperature of the communication equipment and outputting a second control signal, and the second power supply control device is used for controlling the voltage input into the second temperature detection device;
the two input ends of the AND gate circuit are respectively connected with the first temperature detection device and the second temperature detection device, and the output end of the AND gate circuit is respectively connected with the first switch and the phase inverter and used for outputting the control signal;
when one of the first environment temperature and the second environment temperature is lower than the preset temperature, the control signal output by the AND gate circuit controls the first switch to be switched off and controls the second switch to be switched on, and the heating load heats.
In one embodiment, the output end of the and circuit is further connected to the alarm device, and the alarm device alarms when one of the first ambient temperature and the second ambient temperature is lower than the preset temperature.
In one embodiment, the system function means further comprises:
the central processing chip is connected with the first power supply control device, and the first power supply control device is used for controlling and inputting the voltage of the central processing chip;
and the storage chip is respectively connected with the central processing chip and the first power supply control device and is used for finishing a storage function, and the first power supply control device is used for controlling and inputting the voltage of the storage chip.
In one embodiment, the system function means further comprises:
and the programming chip is respectively connected with the central processing chip and the first power supply control device and is used for finishing a programming function, and the first power supply control device is used for controlling and inputting the voltage of the programming chip.
In one embodiment, the system function means further comprises:
and the communication chip is respectively connected with the central processing chip and the first power supply control device and is used for finishing a communication function, and the first power supply control device is used for controlling and inputting the voltage of the communication chip.
A communication device adopts the temperature control circuit of the working environment of the communication device.
A temperature control circuit of a working environment of communication equipment comprises a power supply, a temperature detection device, a system function device, a first switch component, a second switch component and a heating load. The temperature detection device is used for detecting the ambient temperature of the communication equipment and outputting a control signal. And two ends of the first switch component are respectively connected with the system function device and the power supply, and the first switch component is also connected with the temperature detection device. The control signal is used for controlling the opening and closing state of the first switch component. And two ends of the second switch assembly are respectively connected with the heating load and the power supply, and the second switch assembly is also connected with the temperature detection device. The control signal is used for controlling the opening and closing state of the second switch component. When the ambient temperature detected by the temperature detection device is lower than the preset temperature, the control signal controls the first switch component to be switched off and controls the second switch component to be switched on, and the heating load heats.
The temperature detection chip is arranged in the communication equipment working environment temperature control circuit to set the preset temperature, when the environment temperature is lower than the preset temperature, the control signal controls the first switch component to be disconnected, the system function device stops working, the control signal controls the second switch component to be closed, and the heating load heats. The working environment control circuit of the communication equipment enables the communication equipment to be started normally under a low-temperature environment, improves the environment temperature range suitable for the communication equipment, and improves the selectivity of a chip in the communication equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a first circuit diagram of a temperature control circuit of a working environment of a communication device;
FIG. 2 is a second circuit diagram of the temperature control circuit of the working environment of the communication device;
fig. 3 is a third circuit diagram of the communication device working environment temperature control circuit.
Reference numerals:
a communication equipment working environment temperature control circuit 10; a power supply 100; a temperature detection device 200; a first temperature detection device 210; a second temperature detection device 220; an and gate circuit 230; a system function device 300; a central processing chip 310; a memory chip 320; a programming chip 330; a communication chip 340; a first switch assembly 410; a first switch 411; a second switching component 420; a second switch 421; an inverter 422; a heating load 500; a first power control device 610; the second power control means 620; an alarm device 700.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below by way of embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, the circuit for controlling the temperature of the working environment of the communication device according to the embodiment of the present invention includes a power supply 100, a temperature detecting device 200, a system function device 300, a first switch component 410, a second switch component 420, and a heating load 500. The temperature detecting device 200 is used for detecting the ambient temperature of the communication equipment and outputting a control signal. Both ends of the first switch module 410 are respectively connected to the system function device 300 and the power supply 100. The first switch assembly 410 is also connected to the temperature detecting device 200. The control signal is used to control the open/close state of the first switch component 410. Both ends of the second switch assembly 420 are connected to the heating load 500 and the power supply 100, respectively. The second switch assembly 420 is also connected to the temperature detecting device 200. The control signal is used to control the open/close state of the second switch component 420. When the ambient temperature detected by the temperature detecting device 200 is lower than the preset temperature, the control signal controls the first switch component 410 to be turned off, and controls the second switch component 420 to be turned on, and the heating load 500 is heated.
The temperature sensing device 200 includes a low speed communication interface. The preset temperature of the temperature detection device 200 is set through the low-speed communication interface before the communication device leaves the factory. The system function device 300 may be connected to the temperature detection device 200 through the low-speed communication interface. In the process of the operation of the control circuit, the temperature detecting chip may transmit the value of the internal register in the temperature detecting device 200 to the system function device 300 through the low-speed communication interface, the system function device 300 may calculate the ambient temperature detected by the temperature detecting device 200 according to the value of the internal register, and the system function device 300 may process, display and store the ambient temperature.
The heating load 500 may be one, or a plurality of heating loads may be designed as needed. The heating load 500 is located on the inner wall of the communication device. The heating load 500 may be placed above or below the system function chip.
In the communication device operating environment temperature control circuit provided in this embodiment, the environment temperature detected by the temperature detection device 200 is less than the preset temperature, the control signal controls the first switch component 410 to be turned off, the system function device 300 stops operating, the second switch component 420 is turned on, and the heating load 500 heats; the ambient temperature detected by the temperature detection device 200 is greater than or equal to the preset temperature, the control signal controls the first switch component 410 to be closed, the system function device 300 starts to work, the second switch component 420 is switched off, and the heating load 500 stops heating. When the ambient temperature of the communication device is lower than the preset temperature, the working ambient temperature control circuit of the communication device controls the heating load 500 to heat through the temperature detection device 200, so that the communication device can be normally started in a low-temperature environment, the ambient temperature range suitable for the communication device is expanded, and the selectivity of chips in the communication device is improved. The communication equipment can be communication equipment with FC-AE-1553 protocol function and the like applied to the aerospace electronic field and the military field.
Referring to fig. 2, in one embodiment, the first switch component 410 includes a first switch 411, and the second switch component 420 includes a second switch 421 and an inverter 422. Both ends of the first switch 411 are connected to the system function device 300 and the power supply 100, respectively. The first switch 411 is also connected to the temperature detection device 200. The control signal is used to control the open/close state of the first switch 411. Both ends of the second switch 421 are connected to the heating load 500 and the power supply 100, respectively. The inverter 422 is connected between the temperature detecting device 200 and the second switch 421. The control signal is at a high level or a low level. The first switch 411 is closed under the control of a high level signal, and the first switch 411 is opened under the control of a low level signal. The second switch 421 is closed under the control of a high level signal, and the second switch 421 is opened under the control of a low level signal.
The second component includes the second switch 421 and the inverter 422. The inverter 422 is connected between the temperature detecting device 200 and the second switch 421.
When the temperature detection device 200 detects that the ambient temperature is lower than the preset temperature, the control signal output by the temperature detection device 200 is at a low level, the first switch 411 is turned off, and the system function device 300 stops working. The signal of the control signal passing through the inverter 422 is at a high level, the second switch 421 is closed, and the heating load 500 heats.
When the temperature detection device 200 detects that the ambient temperature is greater than or equal to the preset temperature, the control signal output by the temperature detection device 200 is at a high level, the first switch 411 is closed, and the system function device 300 starts to work. The signal of the control signal passing through the inverter 422 is at a low level, the second switch 421 is turned off, and the heating load 500 stops heating.
In one embodiment, the communication device operating environment temperature control circuit further comprises a first power control means 610 and a second power control means 620. The first power control means 610 is connected between the first switch 411 and the system function means 300. The first power control device 610 is used for controlling the voltage input to the system function device 300. The second power control unit 620 is connected to the temperature detection unit 200 and the power supply 100. The second power control device 620 is used for controlling the voltage input to the temperature detection device 200.
The first power control device 610 can convert the voltage of the power supply 100 into the voltage required by various chips in the system function device 300. The second power control unit 620 may convert the voltage of the power supply 100 into voltages required by various chips in the temperature detection device 200.
In one embodiment, the communication device working environment temperature control circuit further comprises an alarm device 700. The alarm device 700 is connected between the temperature detection device 200 and the power supply 100. The alarm device 700 is configured to alarm when the ambient temperature detected by the temperature detection device 200 is less than the preset temperature.
When the ambient temperature detected by the temperature detection device 200 is lower than the preset temperature, the control signal output by the temperature detection device 200 is at a low level, and the alarm device 700 gives an alarm. When the ambient temperature detected by the temperature detection device 200 is greater than or equal to the preset temperature, the control signal output by the temperature detection device 200 is at a high level, and the alarm device 700 does not alarm. The alarm device 700 may emit light to prompt that the ambient temperature of the communication device is lower than the preset temperature. The alarm device 700 may be an LED diode connected between the temperature detection device 200 and the power supply 100. The anode of the LED diode is connected to the power supply 100, and the cathode of the LED diode is connected to the temperature detection device 200. When the ambient temperature detected by the temperature detection device 200 is lower than the preset temperature, the control signal output by the temperature detection device 200 is at a low level, and the LED diode emits light to alarm. When the ambient temperature detected by the temperature detection device 200 is greater than or equal to the preset temperature, the control signal output by the temperature detection device 200 is at a high level, and the LED diode does not emit light.
In one embodiment, the temperature detecting device 200 further includes a first temperature detecting device 210, a second temperature detecting device 220, and an and circuit 230. The first temperature detection device 210 is connected to the second power control device 620. The first temperature detecting device 210 is configured to detect a first ambient temperature of the communication apparatus and output a first control signal. The second power control device 620 is used for controlling the voltage input to the first temperature detection device 210. The second temperature detection device 220 is connected to the second power control device 620. The second temperature detecting device 220 is configured to detect a second ambient temperature of the communication device and output a second control signal. The second power control unit 620 is used for controlling the voltage input to the second temperature detection unit 220. Two input terminals of the and circuit 230 are respectively connected to the first temperature detecting device 210 and the second temperature detecting device 220. The output end of the and circuit 230 is connected to the first switch 411 and the inverter 422, respectively, for outputting the control signal.
When one of the first ambient temperature and the second ambient temperature is lower than the preset temperature, the control signal output by the and circuit 230 controls the first switch 411 to be turned off, and controls the second switch 421 to be turned on, so that the heating load 500 heats.
When the ambient temperature detected by the first temperature detecting device 210 is less than the preset temperature, the first control signal output by the first temperature detecting device 210 is at a low level, and when the ambient temperature detected by the first temperature detecting device 210 is greater than or equal to the preset temperature, the first control signal output by the first temperature detecting device 210 is at a high level. When the ambient temperature detected by the second temperature detecting means 220 is less than the preset temperature, the second control signal output by the second temperature detecting means 220 is at a low level, and when the ambient temperature detected by the second temperature detecting means 220 is greater than or equal to the preset temperature, the second control signal output by the second temperature detecting means 220 is at a high level.
When the first control signal and the second control signal are both at a high level, the control signal output by the and circuit 230 is at a high level, the first switch 411 is closed, the system function device 300 operates, the second switch 421 is opened, and the heating load 500 does not heat; when one of the first control signal and the second control signal is at a low level, the control signal output by the and circuit 230 is at a low level, the first switch 411 is turned off, the system function device 300 stops working, the second switch 421 is turned on, and the heating load 500 starts heating.
The temperature detecting device 200 may include a plurality of the first temperature detecting device 210, the second temperature detecting device 220, and the and circuit 230.
When one of the first temperature detecting device 210 and the second temperature detecting device 220 detects that the ambient temperature is lower than the preset temperature, the and circuit 230 outputs a low-level control signal to control the first switch 411 to be turned off and the second switch 421 to be turned on, so that the heating load 500 is heated. The plurality of first temperature detecting devices 210, the plurality of second temperature detecting devices 220, and the and circuit 230 may be distributed inside the communication device, so as to ensure that the temperature of each position inside the communication device can be detected. The load heats to a plurality of the first temperature detection device 210 and the second detection device detect the ambient temperature is higher than when the preset temperature, the heating load 500 stops heating, the temperature of each position inside the communication equipment is higher than the ambient temperature, and the system function device 300 works normally.
The ambient temperatures detected by the first temperature detecting device 210 and the second temperature detecting device 220 are all greater than or equal to the preset temperature, and the and circuit 230 outputs a high-level control signal to control the first switch 411 to be closed and control the second switch 421 to be opened.
In one embodiment, the output of the and circuit 230 is also connected to the alarm device 700. When one of the first ambient temperature and the second ambient temperature is less than the preset temperature, the alarm device 700 gives an alarm.
The temperature detecting device 200 may include a plurality of the first temperature detecting device 210, the second temperature detecting device 220, and the and circuit 230. When one of the first temperature detecting devices 210 and the second temperature detecting devices 220 detects that the ambient temperature is lower than the preset temperature, the and circuit 230 outputs a low-level control signal, and the alarm device 700 gives an alarm. The environmental temperatures detected by the first temperature detecting device 210 and the second temperature detecting device 220 are both greater than or equal to the preset temperature, the and circuit 230 outputs a high-level control signal, and the alarm device 700 does not alarm.
Referring to fig. 3, in one embodiment, the system function device 300 includes a central processing chip 310 and a memory chip 320. The central processing chip 310 is connected to the first power control device 610. The first power control device 610 is used for controlling the voltage input to the central processing chip 310. The memory chip 320 is connected to the central processing chip 310 and the first power control device 610, respectively, for completing a memory function. The first power control device 610 is used for controlling the voltage input to the memory chip 320.
The central processing chip 310 includes a CPU or a DSP. The memory chip 320 communicates with the central processing chip 310 to perform a memory function. The first power control device 610 is connected to the central processing chip 310 and the memory chip 320, and is configured to convert the voltage of the power supply 100 into the voltages of the central processing chip 310 and the memory chip 320.
In one embodiment, the system function device 300 further includes a programming chip 330. The programming is respectively connected to the central processing chip 310 and the first power control device 610, and is used for completing a programming function. The first power control device 610 is used for controlling the voltage input to the programming chip 330.
The programming chip 330 is used for completing a programming function. The first power control device 610 is connected to the programming chip 330, and is configured to convert the voltage of the power supply 100 into the voltage of the programming chip 330.
In one embodiment, the system function device 300 further includes a communication chip 340. The communication chip 340 is connected to the central processing chip 310 and the first power control device 610, respectively, for completing a communication function. The first power control device 610 is used for controlling the voltage input to the communication chip 340.
The communication chip 340 is used for performing a communication function. The first power control device 610 is connected to the communication chip 340, and is configured to convert the voltage of the power supply 100 into the voltage of the communication chip 340.
A communication device adopts the temperature control circuit of the working environment of the communication device.
The communication equipment adopts the communication equipment working environment control circuit, so that the communication equipment can be normally started in a low-temperature environment, the environment temperature range suitable for the communication equipment is enlarged, and the selectivity of a chip in the communication equipment is improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present patent. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A communication device operating environment temperature control circuit, comprising:
a power supply (100);
the temperature detection device (200) is used for detecting the ambient temperature of the communication equipment and outputting a control signal;
the temperature detection device comprises a system function device (300) and a first switch component (410), wherein two ends of the first switch component (410) are respectively connected with the system function device (300) and the power supply source (100), the first switch component (410) is also connected with the temperature detection device (200), and the control signal is used for controlling the on-off state of the first switch component (410);
the two ends of the second switch component (420) are respectively connected with the heating load (500) and the power supply source (100), the second switch component (420) is also connected with the temperature detection device (200), and the control signal is used for controlling the on-off state of the second switch component (420);
when the ambient temperature detected by the temperature detection device (200) is lower than the preset temperature, the control signal controls the first switch component (410) to be switched off and controls the second switch component (420) to be switched on, and the heating load (500) is heated.
2. The communication device operating environment temperature control circuit of claim 1,
the first switch assembly (410) comprises:
the two ends of the first switch (411) are respectively connected with the system function device (300) and the power supply source (100), the first switch (411) is also connected with the temperature detection device (200), and the control signal is used for controlling the on-off state of the first switch (411);
the second switch assembly (420) comprises:
a second switch (421), wherein two ends of the second switch (421) are respectively connected with the heating load (500) and the power supply (100);
an inverter (422) connected between the temperature detection device (200) and the second switch (421);
the control signal is high level or low level;
the first switch (411) is closed under the control of a high level signal, and the first switch (411) is opened under the control of a low level signal;
the second switch (421) is closed under the control of a high level signal, and the second switch (421) is opened under the control of a low level signal.
3. The communications device operating environment temperature control circuit of claim 2, further comprising:
a first power control device (610) connected between the first switch (411) and the system function device (300), the first power control device (610) being configured to control an input voltage to the system function device (300);
and the second power supply control device (620) is connected to the temperature detection device (200) and the power supply (100), and the second power supply control device (620) is used for controlling and inputting the voltage of the temperature detection device (200).
4. The communications device operating environment temperature control circuit of claim 3, further comprising:
and the alarm device (700) is connected between the temperature detection device (200) and the power supply (100) and used for giving an alarm when the ambient temperature detected by the temperature detection device (200) is less than the preset temperature.
5. The communication device operating environment temperature control circuit of claim 4, wherein the temperature sensing means (200) further comprises:
the first temperature detection device (210) is connected with the second power supply control device (620) and is used for detecting the first environment temperature of the communication equipment and outputting a first control signal, and the second power supply control device (620) is used for controlling the voltage input into the first temperature detection device (210);
the second temperature detection device (220) is connected with the second power supply control device (620) and is used for detecting the second environment temperature of the communication equipment and outputting a second control signal, and the second power supply control device (620) is used for controlling the voltage input into the second temperature detection device (220);
an and-gate circuit (230), two input terminals of the and-gate circuit (230) are respectively connected with the first temperature detection device (210) and the second temperature detection device (220), and an output terminal of the and-gate circuit (230) is respectively connected with the first switch (411) and the inverter (422) for outputting the control signal;
when one of the first ambient temperature and the second ambient temperature is lower than the preset temperature, the control signal output by the and circuit (230) controls the first switch (411) to be switched off, controls the second switch (421) to be switched on, and heats the heating load (500).
6. The communication device operating environment temperature control circuit according to claim 5, wherein the output terminal of the AND circuit (230) is further connected to the alarm device (700), and the alarm device (700) alarms when one of the first ambient temperature and the second ambient temperature is less than the preset temperature.
7. The communications device operating environment temperature control circuit of claim 5, wherein said system function means (300) further comprises:
the central processing chip (310) is connected with the first power supply control device (610), and the first power supply control device (610) is used for controlling and inputting the voltage of the central processing chip (310);
and the memory chip (320) is respectively connected with the central processing chip (310) and the first power supply control device (610) and is used for finishing a memory function, and the first power supply control device (610) is used for controlling and inputting the voltage of the memory chip (320).
8. The communications device operating environment temperature control circuit of claim 7, wherein said system function means (300) further comprises:
and the programming chip (330) is respectively connected with the central processing chip (310) and the first power supply control device (610) and is used for completing a programming function, and the first power supply control device (610) is used for controlling and inputting the voltage of the programming chip (330).
9. The communications device operating environment temperature control circuit of claim 7, wherein said system function means (300) further comprises:
the communication chip (340) is respectively connected with the central processing chip (310) and the first power supply control device (610) and used for completing a communication function, and the first power supply control device (610) is used for controlling and inputting the voltage of the communication chip (340).
10. A communication device comprising the communication device operating environment temperature control circuit of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119953.4A CN114188917A (en) | 2022-02-09 | 2022-02-09 | Communication equipment working environment temperature control circuit and communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210119953.4A CN114188917A (en) | 2022-02-09 | 2022-02-09 | Communication equipment working environment temperature control circuit and communication equipment |
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| CN114188917A true CN114188917A (en) | 2022-03-15 |
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| CN202210119953.4A Pending CN114188917A (en) | 2022-02-09 | 2022-02-09 | Communication equipment working environment temperature control circuit and communication equipment |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190138039A1 (en) * | 2015-12-22 | 2019-05-09 | Jiangyin Huilong Electric Heating Appliance Co., Ltd. | Heater alarm and control module |
| CN212873293U (en) * | 2020-07-09 | 2021-04-02 | 北京锐达芯集成电路设计有限责任公司 | Self-heating constant temperature equipment |
| CN212989967U (en) * | 2020-07-31 | 2021-04-16 | 星络智能科技有限公司 | Heating device |
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2022
- 2022-02-09 CN CN202210119953.4A patent/CN114188917A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190138039A1 (en) * | 2015-12-22 | 2019-05-09 | Jiangyin Huilong Electric Heating Appliance Co., Ltd. | Heater alarm and control module |
| CN212873293U (en) * | 2020-07-09 | 2021-04-02 | 北京锐达芯集成电路设计有限责任公司 | Self-heating constant temperature equipment |
| CN212989967U (en) * | 2020-07-31 | 2021-04-16 | 星络智能科技有限公司 | Heating device |
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