CN215767435U - Low-power-consumption furnace temperature detection circuit, device and tester - Google Patents
Low-power-consumption furnace temperature detection circuit, device and tester Download PDFInfo
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- CN215767435U CN215767435U CN202120844073.4U CN202120844073U CN215767435U CN 215767435 U CN215767435 U CN 215767435U CN 202120844073 U CN202120844073 U CN 202120844073U CN 215767435 U CN215767435 U CN 215767435U
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Abstract
The utility model discloses a low-power-consumption furnace temperature detection circuit, a low-power-consumption furnace temperature detection device and a tester, and relates to the technical field of testers. The low-power-consumption furnace temperature detection circuit comprises a low-power-consumption controller, a temperature detection circuit and a low-power-consumption signal conversion circuit, wherein the temperature detection circuit is connected with a furnace to be detected, the low-power-consumption controller generates a channel selection signal according to a historical temperature signal, the temperature detection circuit detects the furnace temperature according to the channel selection signal to generate a temperature detection signal, and the low-power-consumption signal conversion circuit performs analog-to-digital conversion on the temperature detection signal to generate a digital temperature signal and sends the digital temperature signal to the low-power-consumption controller. The low-power-consumption controller generates a channel selection signal according to a historical temperature signal, the temperature detection circuit detects the furnace temperature according to the channel selection signal to obtain a temperature detection signal, and the low-power-consumption signal conversion circuit converts the temperature detection signal into a digital temperature signal, so that the furnace temperature detection with low power consumption is realized, and the electric energy loss required by the temperature detection and signal transmission is reduced.
Description
Technical Field
The utility model relates to the technical field of testers, in particular to a low-power-consumption furnace temperature detection circuit, a low-power-consumption furnace temperature detection device and a tester.
Background
With the rapid development of scientific technology, the application requirements of medium and large-sized enterprises on large-sized equipment are more and more strong. Such as large electrical plants, boilers, etc. When the large-scale equipment is used, the working temperature needs to be detected in real time, so that the power equipment is prevented from generating a large amount of heat energy in the operation process, the temperature inside the power equipment exceeds a safety threshold value, and the damage to a power system and the safety of personnel is avoided. At present, furnace temperature detection equipment keeps a working state for a long time after being started, and a large amount of electric energy is consumed for temperature detection and signal transmission, so that the power consumption is high.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a low-power-consumption furnace temperature detection circuit, a low-power-consumption furnace temperature detection device and a low-power-consumption furnace temperature tester, and aims to solve the technical problems that the furnace temperature tester in the prior art keeps a working state for a long time and has high power consumption.
In order to achieve the purpose, the utility model provides a low-power-consumption furnace temperature detection circuit, which comprises a low-power-consumption controller, a temperature detection circuit and a low-power-consumption signal conversion circuit which are sequentially connected, wherein a control signal output end of the low-power-consumption controller is connected with a control signal input end of the temperature detection circuit, a detection signal output end of the temperature detection circuit is connected with a detection signal input end of the low-power-consumption signal conversion circuit, a digital signal output end of the low-power-consumption signal conversion circuit is connected with a digital signal input end of the low-power-consumption controller, and the temperature detection circuit is connected with a furnace to be detected;
the low-power-consumption controller is used for receiving a historical temperature signal, generating a channel selection signal according to the historical temperature signal and sending the channel selection signal to the temperature detection circuit;
the temperature detection circuit is used for receiving the channel selection signal, detecting the furnace temperature according to the channel selection signal, generating a temperature detection signal and sending the temperature detection signal to the low-power-consumption signal conversion circuit;
the low-power-consumption signal conversion circuit is used for receiving the temperature detection signal, performing analog-to-digital conversion on the temperature detection signal, generating a digital temperature signal, and sending the digital temperature signal to the low-power-consumption controller, so that the low-power-consumption controller receives the digital temperature signal and realizes low-power-consumption furnace temperature detection.
Optionally, the temperature detection circuit includes a channel selection circuit and a temperature sampling circuit;
the channel selection circuit is used for receiving the channel selection signal sent by the low-power-consumption controller, generating a temperature detection instruction according to the channel selection signal, and sending the temperature detection instruction to the temperature sampling circuit;
the temperature sampling circuit is used for carrying out multi-point sampling on the furnace temperature according to the temperature detection instruction, generating a temperature sampling signal according to a temperature sampling result and sending the temperature sampling signal to the channel selection circuit;
the channel selection circuit is further used for generating a temperature detection signal according to the temperature sampling signal and sending the temperature detection signal to the low-power-consumption signal conversion circuit.
Optionally, the temperature sampling circuit comprises: the channel selection circuit comprises a first resistor, a second resistor, a first capacitor and a second capacitor, wherein the channel selection circuit comprises a channel control chip;
the first end of the first resistor and the first end of the second resistor are respectively connected with a temperature signal output end of the temperature sensor, the second end of the first resistor is respectively connected with a detection voltage input end of the channel control chip and a first end of the first capacitor, the second end of the second resistor is respectively connected with a detection voltage output end of the channel control chip and a first end of the second capacitor, and the second end of the first capacitor and the second end of the second capacitor are respectively grounded.
Optionally, the low power consumption signal conversion circuit includes: the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the seventh resistor, the third capacitor and the low-power-consumption analog-to-digital conversion chip;
the first end of third resistance reaches the first end of fourth resistance respectively with the first temperature detect signal output part of temperature detect circuit connects, the second end of third resistance with the first end of third electric capacity reaches the first temperature detect signal input part of low-power consumption analog-to-digital conversion chip connects, the second end of fourth resistance with the first end of fifth resistance is connected, the first end of sixth resistance with the second end of fifth resistance reaches the second temperature detect signal output part of temperature detect circuit connects, the second end of sixth resistance with the second end of third electric capacity reaches the second temperature detect signal input part of low-power consumption analog-to-digital conversion chip connects.
Optionally, the low-power consumption signal conversion circuit further includes an eighth resistor, a ninth resistor, a tenth resistor, a fourth capacitor, a fifth capacitor, and a sixth capacitor;
the first end of the eighth resistor is connected with the power supply, the second end of the eighth resistor is connected with the first end of the fourth capacitor and the high-voltage input end of the low-power consumption analog-to-digital conversion chip, the second end of the fourth capacitor is grounded, the first end of the ninth resistor is connected with the power supply, the second end of the ninth resistor is connected with the first end of the fifth capacitor and the first end of the sixth capacitor, the second end of the ninth resistor is further connected with the low-voltage input end of the low-power consumption analog-to-digital conversion chip, the second end of the fifth capacitor and the second end of the sixth capacitor are connected with the first end of the tenth resistor, and the second end of the tenth resistor is grounded.
Optionally, the low-power-consumption furnace temperature detection circuit further includes a voltage conversion module, and the voltage conversion module is respectively connected to the low-power-consumption controller, the temperature detection circuit, and the low-power-consumption signal conversion circuit;
the voltage conversion module is used for receiving a charging control signal sent by the low-power-consumption controller, converting charging voltage into power supply voltage according to the charging control, and outputting the power supply voltage to the temperature detection circuit and the low-power-consumption signal conversion circuit.
Optionally, the low-power-consumption furnace temperature detection circuit further includes a communication module, and the communication module is connected to the low-power-consumption controller;
the communication module is used for receiving the digital temperature signal sent by the low-power-consumption controller and sending the digital temperature signal to external equipment so that the external equipment can display temperature information according to the digital temperature signal.
Optionally, the low-power-consumption furnace temperature detection circuit further includes a storage module, and the storage module is connected to the low-power-consumption controller;
and the storage module is used for receiving the storage signal sent by the low-power-consumption controller and storing the storage signal.
In order to achieve the purpose, the utility model further provides a low-power-consumption furnace temperature detection device which comprises the low-power-consumption furnace temperature detection circuit.
In order to achieve the purpose, the utility model further provides a tester which comprises the low-power-consumption furnace temperature detection device.
The utility model discloses a low-power-consumption furnace temperature detection circuit, which comprises a low-power-consumption controller, a temperature detection circuit and a low-power-consumption signal conversion circuit which are sequentially connected, wherein the control signal output end of the low-power-consumption controller is connected with the control signal input end of the temperature detection circuit, the detection signal output end of the temperature detection circuit is connected with the detection signal input end of the low-power-consumption signal conversion circuit, the digital signal output end of the low-power-consumption signal conversion circuit is connected with the digital signal input end of the low-power-consumption controller, the temperature detection circuit is connected with a furnace to be detected, the low-power-consumption controller receives historical temperature signals, generates channel selection signals according to the historical temperature signals, sends the channel selection signals to the temperature detection circuit, receives the channel selection signals, detects the furnace temperature according to the channel selection signals, the temperature detection circuit generates a temperature detection signal, sends the temperature detection signal to the low-power-consumption signal conversion circuit, the low-power-consumption signal conversion circuit receives the temperature detection signal, carries out analog-digital conversion on the temperature detection signal to generate a digital temperature signal, sends the digital temperature signal to the low-power-consumption controller, generates a channel selection signal according to a historical temperature signal through the low-power-consumption controller, detects the furnace temperature according to the channel selection signal by the temperature detection circuit to obtain the temperature detection signal, and converts the temperature detection signal into the digital temperature signal by the low-power-consumption signal conversion circuit, so that the low-power-consumption controller receives the digital temperature signal, realizes furnace temperature detection with low power consumption, and reduces electric energy loss required by temperature detection and signal transmission.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of the apparatus of the first embodiment of the low power consumption furnace temperature detection circuit of the present invention;
FIG. 2 is a schematic diagram of the apparatus of the second embodiment of the low power consumption furnace temperature detection circuit of the present invention;
fig. 3 is a circuit diagram of an embodiment of the low power consumption oven temperature detection circuit of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a first embodiment of the low-power-consumption furnace temperature detection circuit of the present invention, and proposes the first embodiment of the low-power-consumption furnace temperature detection circuit of the present invention.
In this embodiment, the low-power-consumption furnace temperature detection circuit includes a low-power-consumption controller 100, a temperature detection circuit 200, and a low-power-consumption signal conversion circuit 300, which are connected in sequence, a control signal output end of the low-power-consumption controller 100 is connected to a control signal input end of the temperature detection circuit 200, a detection signal output end of the temperature detection circuit 200 is connected to a detection signal input end of the low-power-consumption signal conversion circuit 300, a digital signal output end of the low-power-consumption signal conversion circuit 300 is connected to a digital signal input end of the low-power-consumption controller 100, and the temperature detection circuit 200 is connected to a furnace to be detected.
The low power consumption controller 100 is configured to receive a historical temperature signal, generate a channel selection signal according to the historical temperature signal, and send the channel selection signal to the temperature detection circuit 200.
It should be noted that the low power consumption controller 100 may obtain the historical temperature signal, continue to sample the sampling point with a higher temperature, sleep the sampling point with a lower temperature for a period of time, and re-sample the sampling point with a lower temperature, and the channel selection signal may enable the temperature detection circuit 200 to select a selected sampling point for temperature detection, which is not limited in this embodiment.
The temperature detection circuit 200 is configured to receive the channel selection signal, detect the furnace temperature according to the channel selection signal, generate a temperature detection signal, and send the temperature detection signal to the low-power-consumption signal conversion circuit 300.
It is easy to understand that the temperature detection circuit 200 may receive the power supply voltage for safe operation, and receive the channel selection signal sent by the low power consumption controller 100 during normal operation, so as to turn on the voltage loop of the corresponding sampling point, thereby obtaining a temperature detection result, generate a temperature monitoring signal according to the temperature detection result, and send the temperature detection signal to the low power consumption signal conversion circuit 300, which is not limited in this embodiment.
The low power consumption signal conversion circuit 300 is configured to receive the temperature detection signal, perform analog-to-digital conversion on the temperature detection signal, generate a digital temperature signal, and send the digital temperature signal to the low power consumption controller 100, so that the low power consumption controller 100 receives the digital temperature signal, and implement low power consumption furnace temperature detection.
It is understood that the low power consumption signal conversion circuit 300 may be an analog-to-digital conversion circuit, the low power consumption signal conversion circuit 300 may convert the temperature detection signal (analog signal) into a digital temperature signal (digital signal), the low power consumption signal conversion circuit 300 sends the digital temperature signal to the low power consumption controller 100, and the low power consumption controller 100 receives the digital temperature signal to complete the furnace temperature detection, which is not limited in this embodiment.
The embodiment provides a low-power-consumption furnace temperature detection circuit, which comprises a low-power-consumption controller 100, a temperature detection circuit 200 and a low-power-consumption signal conversion circuit 300 which are connected in sequence, wherein a control signal output end of the low-power-consumption controller 100 is connected with a control signal input end of the temperature detection circuit 200, a detection signal output end of the temperature detection circuit 200 is connected with a detection signal input end of the low-power-consumption signal conversion circuit 300, a digital signal output end of the low-power-consumption signal conversion circuit 300 is connected with a digital signal input end of the low-power-consumption controller 100, the temperature detection circuit 200 is connected with a furnace to be detected, the low-power-consumption controller 100 receives historical temperature signals, generates channel selection signals according to the historical temperature signals, sends the channel selection signals to the temperature detection circuit 200, the temperature detection circuit 200 receives the channel selection signals, detects the furnace temperature according to the channel selection signals, the method comprises the steps of generating a temperature detection signal, sending the temperature detection signal to a low-power-consumption signal conversion circuit 300, receiving the temperature detection signal by the low-power-consumption signal conversion circuit 300, carrying out analog-to-digital conversion on the temperature detection signal to generate a digital temperature signal, sending the digital temperature signal to a low-power-consumption controller 100, generating a channel selection signal according to a historical temperature signal by the low-power-consumption controller 100, detecting the furnace temperature by the temperature detection circuit 200 according to the channel selection signal to obtain a temperature detection signal, and converting the temperature detection signal into the digital temperature signal by the low-power-consumption signal conversion circuit 300 so that the low-power-consumption controller 100 receives the digital temperature signal, the furnace temperature detection with low power consumption is realized, and the electric energy loss required by the temperature detection and the signal transmission is reduced.
Referring to fig. 2 and 3, fig. 2 is a schematic diagram of a device structure of a second embodiment of the low-power-consumption furnace temperature detection circuit of the present invention, fig. 3 is a circuit diagram of a first embodiment of the low-power-consumption furnace temperature detection circuit of the present invention, and the second embodiment of the low-power-consumption furnace temperature detection circuit of the present invention is proposed on the basis of the first embodiment.
In this embodiment, the temperature detection circuit 200 includes a channel selection circuit 202 and a temperature sampling circuit 201;
the channel selection circuit 202 is configured to receive the channel selection signal sent by the low power consumption controller 100, generate a temperature detection instruction according to the channel selection signal, and send the temperature detection instruction to the temperature sampling circuit 201;
the temperature sampling circuit 201 is configured to perform multi-point sampling on the furnace temperature according to the temperature detection instruction, generate a temperature sampling signal according to a temperature sampling result, and send the temperature sampling signal to the channel selection circuit 202;
the channel selection circuit 202 is further configured to generate a temperature detection signal according to the temperature sampling signal, and send the temperature detection signal to the low power consumption signal conversion circuit 300.
It should be understood that the temperature sampling circuit 201 may be connected to the furnace to be detected, and a plurality of temperature sampling circuits 201 are disposed at each monitoring position of the furnace to be detected, and the specific monitoring position may be set according to the actual requirement of temperature detection. The sampling end of the temperature detection circuit 200 is provided with a temperature sensor T, the temperature sampling circuit 201 receives a temperature voltage, namely a temperature sampling result, sent by the temperature sensor T, and stabilizes the temperature voltage, and the temperature sampling signal may be the temperature voltage after stabilization, which is not limited in this embodiment.
In this embodiment, the temperature sampling circuit 201 includes: the channel selection circuit 202 comprises a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2, and comprises a channel control chip;
the first end of the first resistor R1 and the first end of the second resistor R2 are respectively connected with a temperature signal output end of the temperature sensor T, the second end of the first resistor R1 is respectively connected with a detection voltage input end of the channel control chip and the first end of the first capacitor C1, the second end of the second resistor R2 is respectively connected with a detection voltage output end of the channel control chip and the first end of the second capacitor C2, and the second end of the first capacitor C1 and the second end of the second capacitor C2 are respectively grounded.
It should be noted that, as shown in fig. 3, CH + is a sampling voltage output terminal, CH-is a sampling voltage input terminal, CL is a channel selection signal transmission terminal, X is a first temperature detection signal transmission terminal, Y is a second temperature detection signal transmission terminal, VIn1 is a first power supply voltage input terminal, the first resistor R1 and the second resistor R2 may be load resistors, and the first capacitor C1 and the second capacitor C2 may be filter capacitors, which commonly perform a voltage stabilizing function on a temperature voltage, which is not limited in this embodiment.
In this embodiment, the low power consumption signal conversion circuit 300 includes: a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a third capacitor C3 and a low-power analog-to-digital conversion chip;
the first end of the third resistor R3 and the first end of the fourth resistor R4 are respectively connected to the first temperature detection signal output end of the temperature detection circuit 200, the second end of the third resistor R3 is connected to the first end of the third capacitor C3 and the first temperature detection signal input end of the low power consumption analog-to-digital conversion chip, the second end of the fourth resistor R4 is connected to the first end of the fifth resistor R5, the first end of the sixth resistor R6 is connected to the second end of the fifth resistor R5 and the second temperature detection signal output end of the temperature detection circuit 200, and the second end of the sixth resistor R6 is connected to the second end of the third capacitor C3 and the second temperature detection signal input end of the low power consumption analog-to-digital conversion chip.
It should be noted that, as shown in fig. 3, DT is a digital temperature signal transmission terminal, VIn2 is a second power supply voltage input terminal, VIn3 is a third power supply voltage input terminal, GND is a ground terminal, the low power consumption analog-to-digital conversion chip can be an analog-to-digital conversion chip for controlling power consumption, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, and the seventh resistor R7 can be load resistors and have a voltage stabilizing function, the third capacitor C3 can be a filter capacitor and can be used for filtering signals, which is not limited in this embodiment.
In this embodiment, the low power consumption signal conversion circuit 300 further includes an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a fourth capacitor C4, a fifth capacitor C5, and a sixth capacitor C6;
a first end of the eighth resistor R8 is connected to a power supply, a second end of the eighth resistor R8 is connected to the first end of the fourth capacitor C4 and the high voltage input end of the low power consumption analog-to-digital conversion chip, a second end of the fourth capacitor C4 is grounded, a first end of the ninth resistor R9 is connected to the power supply, a second end of the ninth resistor R9 is connected to the first end of the fifth capacitor C5 and the first end of the sixth capacitor C6, a second end of the ninth resistor R9 is further connected to the low voltage input end of the low power consumption analog-to-digital conversion chip, a second end of the fifth capacitor C5 and a second end of the sixth capacitor C6 are connected to the first end of the tenth resistor R10, and a second end of the tenth resistor R10 is grounded.
It should be noted that VOut1 is a first power supply voltage output terminal, VOut2 is a second power supply voltage output terminal, VOut3 is a third power supply voltage output terminal, the eighth resistor R8, the ninth resistor R9 and the tenth resistor R10 may be load resistors, and the fourth capacitor C4, the fifth capacitor C5 and the sixth capacitor C6 are filter capacitors, which collectively perform voltage stabilization and filtering on the input power supply voltage, which is not limited in this embodiment.
In this embodiment, the low-power-consumption furnace temperature detection circuit further includes a voltage conversion module 400, and the voltage conversion module 400 is respectively connected to the low-power-consumption controller 100, the temperature detection circuit 200, and the low-power-consumption signal conversion circuit 300;
the voltage conversion module 400 is configured to receive a charging control signal sent by the low power consumption controller 100, convert a charging voltage into a power supply voltage according to the charging control, and output the power supply voltage to the temperature detection circuit 200 and the low power consumption signal conversion circuit 300.
It should be understood that the voltage conversion module 400 may be connected to a power supply, and when the voltage conversion module 400 receives the high-level charge enable signal sent by the low power consumption controller 100, it may receive a charge voltage, which may be a battery voltage boosted by a battery or a mobile power supply providing a mobile power supply voltage. The voltage conversion module 400 can regulate the voltage of the charging voltage, convert the charging voltage into a power supply voltage for different functional parts of the tester, where the power supply voltage may include voltages with different voltage values, and the specific voltage value of the voltage may be set according to the actual requirements of the user, which is not limited in this embodiment.
In this embodiment, the low-power-consumption furnace temperature detection circuit further includes a communication module 500, and the communication module 500 is connected to the low-power-consumption controller 100;
the communication module 500 is configured to receive the digital temperature signal sent by the low power consumption controller 100, and send the digital temperature signal to an external device, so that the external device displays temperature information according to the digital temperature signal.
It should be noted that the communication module 500 may be a module for establishing data interaction with an external device, and the communication module 500 may send the digital temperature signal to the external device, and may also receive a related control instruction sent by the external device, which is not limited in this embodiment.
In this embodiment, the low-power-consumption furnace temperature detection circuit further includes a storage module 600, and the storage module 600 is connected to the low-power-consumption controller 100;
the storage module 600 is configured to receive a storage signal sent by the low power consumption controller 100, and store the storage signal.
It should be noted that the storage module 600 may be used in a device for storing storage information generated by the furnace temperature detection circuit, the storage signal may include storage information such as collected temperature information, time information corresponding to the collected temperature information, and sampling point information corresponding to the collected temperature information, the furnace temperature detection circuit needs to monitor the furnace to be detected in real time, a large amount of data information may be generated, and at this time, the storage module 600 stores the temperature information collected historically, so that resource waste caused by directly storing a large amount of data by the low-power controller 100 may be avoided, and thus the information processing speed is increased. The storage module 600 may be connected to an external device, and the external device may directly obtain the temperature information collected historically from the storage module 600, which is not limited in this embodiment.
In this embodiment, the temperature detection circuit 200 includes a channel selection circuit 202 and a temperature sampling circuit 201, the temperature sampling circuit 201 includes a first resistor R1, a second resistor R2, a first capacitor C1 and a second capacitor C2, the channel selection circuit 202 includes a channel control chip, and the low power consumption signal conversion circuit 300 includes: a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a third capacitor C3 and a low-power consumption analog-to-digital conversion chip, wherein the low-power consumption signal conversion circuit 300 further comprises an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, a fourth capacitor C4, a fifth capacitor C5 and a sixth capacitor C6, the low-power consumption furnace temperature detection circuit further comprises a voltage conversion module 400, a communication module 500 and a storage module 600, the temperature sampling circuit 201 samples the furnace temperature, the channel selection circuit 202 selects a channel required to be sampled, the low-power consumption signal conversion circuit 300 converts an analog signal into a digital signal, the voltage conversion module 400 converts a charging voltage into a power supply voltage, the communication module 500 communicates with an external device, the storage module 600 stores information, the furnace temperature detection and the information interaction with low power consumption are realized, and the electric energy loss required by temperature detection and signal transmission is reduced, the safety and the practicability of the tester are improved.
In order to achieve the above object, the present invention further provides a low power consumption furnace temperature detection device, which includes the low power consumption furnace temperature detection circuit. The specific structure of the low-power-consumption furnace temperature detection circuit refers to the above embodiments, and since the low-power-consumption furnace temperature detection device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
In order to achieve the above object, the present invention further provides a tester, which includes the low power consumption furnace temperature detection device. The specific structure of the furnace temperature detection device with low power consumption refers to the above embodiments, and since the tester adopts all technical solutions of all the above embodiments, all beneficial effects brought by the technical solutions of the above embodiments are at least achieved, and are not repeated here.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The low-power-consumption furnace temperature detection circuit is characterized by comprising a low-power-consumption controller, a temperature detection circuit and a low-power-consumption signal conversion circuit which are sequentially connected, wherein a control signal output end of the low-power-consumption controller is connected with a control signal input end of the temperature detection circuit, a detection signal output end of the temperature detection circuit is connected with a detection signal input end of the low-power-consumption signal conversion circuit, a digital signal output end of the low-power-consumption signal conversion circuit is connected with a digital signal input end of the low-power-consumption controller, and the temperature detection circuit is connected with a furnace to be detected;
the low-power-consumption controller is used for receiving a historical temperature signal, generating a channel selection signal according to the historical temperature signal and sending the channel selection signal to the temperature detection circuit;
the temperature detection circuit is used for receiving the channel selection signal, detecting the furnace temperature according to the channel selection signal, generating a temperature detection signal and sending the temperature detection signal to the low-power-consumption signal conversion circuit;
the low-power consumption signal conversion circuit is used for receiving the temperature detection signal, performing analog-to-digital conversion on the temperature detection signal, generating a digital temperature signal, and sending the digital temperature signal to the low-power consumption controller, so that the low-power consumption controller receives the digital temperature signal and realizes low-power consumption furnace temperature detection.
2. The low-power-consumption furnace temperature detection circuit according to claim 1, wherein the temperature detection circuit comprises a channel selection circuit and a temperature sampling circuit;
the channel selection circuit is used for receiving the channel selection signal sent by the low-power-consumption controller, generating a temperature detection instruction according to the channel selection signal, and sending the temperature detection instruction to the temperature sampling circuit;
the temperature sampling circuit is used for carrying out multi-point sampling on the furnace temperature according to the temperature detection instruction, generating a temperature sampling signal according to a temperature sampling result and sending the temperature sampling signal to the channel selection circuit;
the channel selection circuit is further used for generating a temperature detection signal according to the temperature sampling signal and sending the temperature detection signal to the low-power-consumption signal conversion circuit.
3. The low power oven temperature detection circuit of claim 2, wherein the temperature sampling circuit comprises: the channel selection circuit comprises a first resistor, a second resistor, a first capacitor and a second capacitor, wherein the channel selection circuit comprises a channel control chip;
the first end of the first resistor and the first end of the second resistor are respectively connected with a temperature signal output end of the temperature sensor, the second end of the first resistor is respectively connected with a detection voltage input end of the channel control chip and a first end of the first capacitor, the second end of the second resistor is respectively connected with a detection voltage output end of the channel control chip and a first end of the second capacitor, and the second end of the first capacitor and the second end of the second capacitor are respectively grounded.
4. The low-power oven temperature detection circuit of claim 1, wherein the low-power signal conversion circuit comprises: the third resistor, the fourth resistor, the fifth resistor, the sixth resistor, the seventh resistor, the third capacitor and the low-power-consumption analog-to-digital conversion chip;
the first end of third resistance reaches the first end of fourth resistance respectively with the first temperature detect signal output part of temperature detect circuit connects, the second end of third resistance with the first end of third electric capacity reaches the first temperature detect signal input part of low-power consumption analog-to-digital conversion chip connects, the second end of fourth resistance with the first end of fifth resistance is connected, the first end of sixth resistance with the second end of fifth resistance reaches the second temperature detect signal output part of temperature detect circuit connects, the second end of sixth resistance with the second end of third electric capacity reaches the second temperature detect signal input part of low-power consumption analog-to-digital conversion chip connects.
5. The low-power-consumption furnace temperature detection circuit according to claim 4, wherein the low-power-consumption signal conversion circuit further comprises an eighth resistor, a ninth resistor, a tenth resistor, a fourth capacitor, a fifth capacitor and a sixth capacitor;
the first end of the eighth resistor is connected with the power supply, the second end of the eighth resistor is connected with the first end of the fourth capacitor and the high-voltage input end of the low-power consumption analog-to-digital conversion chip, the second end of the fourth capacitor is grounded, the first end of the ninth resistor is connected with the power supply, the second end of the ninth resistor is connected with the first end of the fifth capacitor and the first end of the sixth capacitor, the second end of the ninth resistor is further connected with the low-voltage input end of the low-power consumption analog-to-digital conversion chip, the second end of the fifth capacitor and the second end of the sixth capacitor are connected with the first end of the tenth resistor, and the second end of the tenth resistor is grounded.
6. The low-power-consumption furnace temperature detection circuit according to any one of claims 1 to 5, further comprising a voltage conversion module, wherein the voltage conversion module is respectively connected with the low-power-consumption controller, the temperature detection circuit and the low-power-consumption signal conversion circuit;
the voltage conversion module is used for receiving a charging control signal sent by the low-power-consumption controller, converting charging voltage into power supply voltage according to the charging control, and outputting the power supply voltage to the temperature detection circuit and the low-power-consumption signal conversion circuit.
7. The low power oven temperature detection circuit of any of claims 1 to 5, further comprising a communication module, the communication module being connected to the low power controller;
the communication module is used for receiving the digital temperature signal sent by the low-power-consumption controller and sending the digital temperature signal to external equipment so that the external equipment can display temperature information according to the digital temperature signal.
8. The low power oven temperature detection circuit of any of claims 1 to 5, further comprising a memory module, the memory module being coupled to the low power controller;
and the storage module is used for receiving the storage signal sent by the low-power-consumption controller and storing the storage signal.
9. A low power oven temperature sensing device, characterized in that it comprises a low power oven temperature sensing circuit according to any of claims 1 to 8.
10. A tester, characterized in that the tester comprises the low-power-consumption furnace temperature detection device according to claim 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120844073.4U CN215767435U (en) | 2021-04-22 | 2021-04-22 | Low-power-consumption furnace temperature detection circuit, device and tester |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120844073.4U CN215767435U (en) | 2021-04-22 | 2021-04-22 | Low-power-consumption furnace temperature detection circuit, device and tester |
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| Publication Number | Publication Date |
|---|---|
| CN215767435U true CN215767435U (en) | 2022-02-08 |
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| CN202120844073.4U Active CN215767435U (en) | 2021-04-22 | 2021-04-22 | Low-power-consumption furnace temperature detection circuit, device and tester |
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| CN (1) | CN215767435U (en) |
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