Temperature measuring device, method and remote temperature measuring system

Abstract

The present invention discloses a temperature measuring device, method and remote temperature measuring system, which relate to the field of temperature testing technology, in order to solve the problem that integrating the entire bipolar transistor temperature sensor into the device corresponding to the scene requiring temperature monitoring will lead to a large waste of equipment area and power consumption. The temperature measuring device includes: a local temperature measuring device and a remote temperature measuring device for integration in the remote end. The remote temperature measuring system includes the temperature measuring device mentioned in the above technical solution. The temperature conversion circuit provided by the present invention is used to determine the remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal, so as to obtain the temperature in the remote temperature measuring device locally, avoid the problem that integrating the entire bipolar transistor temperature sensor into the device corresponding to the scene requiring temperature monitoring will lead to a large waste of equipment area and power consumption, so that the equipment area and power consumption are reduced, and the stability and reliability of the equipment are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature testing, and in particular to a temperature measuring device, method and remote temperature measuring system. Background Art

[0002] With the development of temperature testing technology, temperature sensors, as an important branch, have also been greatly developed. Temperature sensors include bipolar junction transistor (BJT) temperature sensors.

[0003] At present, the digital temperature measurement circuit uses BJT temperature sensor as the temperature sensor device, and integrates the BJT temperature sensor into the device corresponding to the scene that requires temperature monitoring. The specific temperature measurement process may include: the voltage between the base and the emitter (V BE ) passes through a high-precision analog-to-digital conversion circuit (ADC) and subsequent digital processing circuit to obtain the ambient temperature of the BJT temperature sensor at this time.

[0004] However, integrating the entire BJT temperature sensor into the device corresponding to the scenario requiring temperature monitoring will result in a large waste of device area and power consumption, and reduce the stability and reliability of the device. Summary of the invention

[0005] The object of the present invention is to provide a temperature measuring device, method and remote temperature measuring system, which are used to solve the problem that integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring will result in a large waste of device area and power consumption, and reduce the stability and reliability of the device.

[0006] In a first aspect, the present invention provides a temperature measuring device, comprising: a local temperature measuring device and a remote temperature measuring device connected to the local temperature measuring device and used for integration in a remote end; the local temperature measuring device comprises a temperature quantization circuit and a temperature conversion circuit;

[0007] The temperature conversion circuit is used to control the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to a first control signal, and the temperature quantization circuit is used to send a local voltage signal to the temperature conversion circuit according to a bias current when the temperature quantization circuit is electrically connected to the temperature conversion circuit; the temperature conversion circuit is used to determine a local temperature digital signal based on local voltage conversion result information;

[0008] The temperature conversion circuit is further used to control the remote temperature measuring device and the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the second control signal, and the temperature quantization circuit is further used to send a remote voltage signal for quantifying the remote temperature to the temperature conversion circuit according to the bias current when the remote temperature measuring device and the temperature quantization circuit are both electrically connected to the temperature conversion circuit;

[0009] The temperature conversion circuit is used to determine a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal.

[0010] Compared with the prior art, in the temperature measuring device provided by the present invention, a remote temperature measuring device is arranged at a remote end, and a remote temperature digital signal is determined according to the local voltage signal, the remote voltage signal and the local temperature digital signal through a temperature conversion circuit included in the local temperature measuring device. The temperature in the remote temperature measuring device can be obtained locally, thereby avoiding the problem of wasting a large amount of equipment area and power consumption caused by integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring. The equipment area and power consumption are reduced, and the stability and reliability of the equipment are improved.

[0011] In a second aspect, the present invention further provides a temperature measurement method, which is applied to a temperature measurement device, wherein the temperature measurement device includes a local temperature measurement device and a remote temperature measurement device connected to the local temperature measurement device and used for integration in a remote end; the local temperature measurement device includes a temperature quantization circuit and a temperature conversion circuit;

[0012] The temperature conversion circuit controls the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the first control signal, or controls the remote temperature measuring device and the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the second control signal;

[0013] The temperature quantization circuit sends a local voltage signal to the temperature conversion circuit according to the bias current when the temperature quantization circuit is electrically connected to the temperature conversion circuit, or the temperature quantization circuit is further used to send a remote voltage signal for quantifying a remote temperature to the temperature conversion circuit according to the bias current when both the remote temperature measuring device and the temperature quantization circuit are electrically connected to the temperature conversion circuit;

[0014] The temperature conversion circuit determines a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal.

[0015] In a third aspect, the present invention further provides a remote temperature measurement system, comprising a cooling device and a logic control module, and:

[0016] As in the temperature measuring device described in the first aspect, the temperature cooling device is connected to the remote temperature measuring device in the temperature measuring device through the logic control module, and the logic control module controls the temperature cooling device to cool the remote temperature measuring device according to the electrical signal of the remote temperature measuring device.

[0017] Compared with the prior art, the beneficial effects of the remote temperature measurement system and the temperature measurement method provided by the present invention are the same as the beneficial effects of the local temperature measurement device described in the above technical solution, and will not be elaborated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.

[0019] Figure 1 A circuit diagram of a traditional BJT temperature sensor is shown;

[0020] Figure 2 A schematic diagram of the structure of a temperature measuring device provided in an embodiment of the present application is shown;

[0021] Figure 3 A circuit structure diagram of a temperature measuring device provided in an embodiment of the present application is shown;

[0022] Figure 4 A schematic structural diagram of a remote temperature measurement system provided in an embodiment of the present application is shown.

[0023] Reference numerals:

[0024] 10-temperature measuring device; 101-local temperature measuring device; 102-remote temperature measuring device; 101A-temperature quantization circuit; 101B-temperature conversion circuit; 20-temperature measuring device circuit; 201-local temperature measuring circuit; 202-remote temperature measuring circuit; 201A-local BJT; 201B-bias circuit; 202A-remote BJT; 30-remote temperature measuring system; 301-cooling device; 302-logic control module. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.

[0028] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Figure 1 A circuit diagram of a conventional bipolar junction transistor (BJT) temperature sensor is shown in FIG. Figure 1 As shown, the temperature measured by the chip where the BJT temperature sensor is located is the local temperature, that is, the actual ambient temperature of the chip. The specific principle includes: the local BJT temperature sensor 01 inside the chip can select to generate a first voltage (V BEL ) or the second voltage (ΔV BEL). The first voltage quantity or the second voltage quantity continues to enter the ADC 02 for quantization. However, integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring will result in a large waste of device area and power consumption, and reduce the stability and reliability of the device.

[0031] Based on the above reasons, an embodiment of the present invention provides a temperature measuring device. Figure 2 FIG. 1 shows a schematic diagram of the structure of a temperature measuring device provided in an embodiment of the present application. Figure 2 As shown, the temperature measuring device may include a local temperature measuring device 101 and a remote temperature measuring device 102 connected to the local temperature measuring device 101 and used for integration in a remote end.

[0032] The local temperature measuring device 101 includes a temperature quantization circuit 101A and a temperature conversion circuit 101B.

[0033] The temperature conversion circuit 101B is used to control the temperature quantization circuit 101A to be electrically connected to the temperature conversion circuit 101B according to the first control signal; the temperature quantization circuit 101A is used to send a local voltage signal to the temperature conversion circuit 101B according to the bias current when the temperature quantization circuit 101A is electrically connected to the temperature conversion circuit 101B; the temperature conversion circuit 101B is used to determine the local temperature digital signal based on the local voltage conversion result information;

[0034] The temperature conversion circuit 101B is further used to control the remote temperature measuring device 102 and the temperature quantization circuit 101A to be electrically connected to the temperature conversion circuit 101B according to the second control signal, and the temperature quantization circuit 101A is further used to send a remote voltage signal for quantifying the remote temperature to the temperature conversion circuit 101B according to the bias current when the remote temperature measuring device 102 and the temperature quantization circuit 101A are both electrically connected to the temperature conversion circuit 101B;

[0035] The temperature conversion circuit 101B is used to determine a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal.

[0036] Wherein, the local temperature measuring device and the remote temperature measuring device may be provided with a BJT temperature sensor, and the local temperature measuring device and the remote temperature measuring device may be connected by a wire to achieve transmission of a temperature signal.

[0037] Optionally, a bipolar junction transistor (BJT) temperature sensor may be provided in the remote temperature measuring device, and a temperature measuring port of the BJT temperature sensor may be led out and connected to the BJT temperature sensor in the local temperature measuring device through a wire.

[0038] The temperature measuring device provided in the embodiment of the present application includes: a local temperature measuring device and a remote temperature measuring device for integration in a remote end; that is, the temperature measuring device of the present application is a remote temperature measuring device arranged at a remote end, and the local temperature measuring device includes a temperature quantization circuit and a temperature conversion circuit; wherein the temperature conversion circuit 101B is used to determine the remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal, that is, the temperature in the remote temperature measuring device can be obtained locally, avoiding the problem of wasting a large amount of equipment area and power consumption by integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring, so that the equipment area and power consumption are reduced, and the stability and reliability of the equipment are improved.

[0039] See also Figure 2 , the temperature conversion circuit 101B is used to control the temperature quantization circuit 101A to be electrically connected to the temperature conversion circuit 101B according to the first control signal, the temperature quantization circuit 101A is used to send a local voltage signal to the temperature conversion circuit 101B according to the bias current when the temperature quantization circuit 101A is electrically connected to the temperature conversion circuit 101B; the temperature conversion circuit 101B is used to determine the local temperature digital signal based on the local voltage conversion result information;

[0040] The temperature conversion circuit 101B is further used to control the remote temperature measuring device 102 and the temperature quantization circuit 101A to be electrically connected to the temperature conversion circuit 101B according to the second control signal, and the temperature quantization circuit 101A is further used to send a remote voltage signal for quantifying the remote temperature to the temperature conversion circuit 101B according to the bias current when the remote temperature measuring device 102 and the temperature quantization circuit 101A are both electrically connected to the temperature conversion circuit 101B;

[0041] The temperature conversion circuit 101B is used to determine a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal.

[0042] The temperature in the remote temperature measuring device can be obtained locally, avoiding the problem of integrating the entire BJT temperature sensor into the device corresponding to the scene that requires temperature monitoring, which will lead to a large waste of equipment area and power consumption. Feedback control of the temperature of the environment in which the remote temperature measuring device is located can be achieved, so that the equipment area and power consumption can be reduced, and the stability and reliability of the equipment can be improved.

[0043] Optional, Figure 3 A circuit diagram of a temperature measuring device provided in an embodiment of the present application is shown. Figure 3As shown, the temperature measuring device circuit 20 includes a local temperature measuring circuit 201 corresponding to a local temperature measuring device and a remote temperature measuring circuit 202 corresponding to a remote temperature measuring device connected to the local temperature measuring device and used for integration in a remote end.

[0044] Optional, see Figure 3 The local temperature measurement circuit 201 includes a bias circuit 201B, and the bias circuit 201B can generate a bias current.

[0045] See also Figure 3 The local temperature measurement circuit 201 is provided with a local BJT 201A, and the reference voltage (V REF ) can quantify the voltage difference (ΔV) between the base and the emitter generated by the remote BJT 202A provided in the remote temperature measurement circuit 202. BER ), then see Figure 3 When measuring the temperature of a remote temperature measuring device, the local temperature is first converted. At this time, SW L On, SW R disconnected, that is, according to the first control signal, the temperature quantization circuit is electrically connected to the temperature conversion circuit, and when the temperature quantization circuit is electrically connected to the temperature conversion circuit, a local voltage signal (V BEL and ΔV BEL ), where V BEL is the voltage between the base and the emitter; the temperature conversion circuit is used to determine the local temperature digital signal based on the local voltage conversion result information.

[0046] For further information, see Figure 3 , S.W. L and SW R At the same time, that is, the remote temperature measuring device and the temperature quantization circuit are both electrically connected to the temperature conversion circuit according to the second control signal, and the temperature quantization circuit is also used to send a remote voltage signal (ΔV) quantifying the remote temperature to the temperature conversion circuit according to the bias current when the remote temperature measuring device and the temperature quantization circuit are both electrically connected to the temperature conversion circuit. BER ), the remote voltage signal represents the remote temperature.

[0047] Further, see Figure 3 , according to the local voltage signal (V BEL and ΔV BEL ), the remote voltage signal (ΔV BER ) and the local temperature digital signal (T L ) determines the remote temperature digital signal (T R ).

[0048] Specifically, the process of determining the remote temperature digital signal may include: in a temperature measurement, assuming that the probability of bs=1 is μ R , bs=1 appears in N cycles R The total number of conversion cycles is recorded as A R , the differential output voltage of the integrator of the ΣΔADC is 0 before the start of the first conversion cycle and at the end of the last conversion cycle, then the following equation holds:

[0049]

[0050] Among them, μ R is the probability of the bias current occurring during remote voltage conversion, N R is the remote voltage conversion result, A R is the number of cycles of the remote voltage conversion, ΔV BER is the remote voltage.

[0051] Among them, see Figure 3 , the remote voltage ΔV BER satisfy:

[0052]

[0053] Among them, T R The temperature conversion circuit obtains the remote temperature information of the remote temperature measuring device according to the remote circuit information, n R The ratio of the multiples of the bias current when producing the remote voltage change;

[0054] Formula (3) is simplified by combining formula (4) to obtain the remote voltage conversion result N R satisfy:

[0055]

[0056] The remote temperature digital signal T R satisfy:

[0057]

[0058] Among them, Y L is the local temperature digital signal, K L A is the slope of the local voltage conversion result relative to the local temperature information. L is the number of cycles of local voltage conversion; N R is the remote voltage conversion result, K R A is the slope of the remote voltage conversion result relative to the remote temperature information. Ris the number of cycles of remote voltage conversion. At this point, the remote temperature digital signal can be determined, that is, the remote temperature can be determined.

[0059] Optional, see Figure 3 The temperature conversion circuit is used to determine the local temperature digital signal T based on the local voltage conversion result information. L , the local temperature digital signal T L satisfy:

[0060]

[0061] Among them, the N L is the local voltage conversion result, T L is the local temperature digital signal, K L A is the slope of the local voltage conversion result relative to the local temperature information. L is the number of cycles of local voltage conversion; the local voltage conversion result N L satisfy:

[0062] Optional, see Figure 3 , the local voltage conversion is completed when:

[0063]

[0064] Among them, μ L is the probability of the bias current occurring during the local voltage conversion, and the local temperature measuring device generates a local voltage V according to the code stream information of the temperature conversion circuit. BEL or ΔV BEL . N L is the local voltage conversion result,

[0065]

[0066] Among them, α is the voltage difference coefficient, q is the charge, V REF is the bandgap reference voltage, n L The local temperature value can be obtained by calculating the ratio of the bias current multiples when the local voltage change is generated.

[0067] The temperature measuring device provided in the embodiment of the present application includes: a local temperature measuring device and a remote temperature measuring device for integration in a remote end; that is, the temperature measuring device of the present application is a remote temperature measuring device arranged at a remote end, and the local temperature measuring device includes a temperature quantization circuit and a temperature conversion circuit; wherein the temperature conversion circuit 101B is used to determine the remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal, that is, the temperature in the remote temperature measuring device can be obtained locally, avoiding the problem of wasting a large amount of equipment area and power consumption by integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring, and realizing feedback control of the temperature of the environment in which the remote temperature measuring device is located, so that the equipment area and power consumption are reduced, and the stability and reliability of the equipment are improved.

[0068] The embodiment of the present application also provides a temperature measurement method, which is applied to a temperature measurement device, wherein the temperature measurement device includes a local temperature measurement device and a remote temperature measurement device connected to the local temperature measurement device and used for integration in a remote end; the local temperature measurement device includes a temperature quantization circuit and a temperature conversion circuit;

[0069] The temperature conversion circuit controls the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the first control signal, or controls the remote temperature measuring device and the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the second control signal;

[0070] The temperature quantization circuit sends a local voltage signal to the temperature conversion circuit according to the bias current when the temperature quantization circuit is electrically connected to the temperature conversion circuit, or the temperature quantization circuit is further used to send a remote voltage signal for quantifying a remote temperature to the temperature conversion circuit according to the bias current when both the remote temperature measuring device and the temperature quantization circuit are electrically connected to the temperature conversion circuit;

[0071] The temperature conversion circuit determines a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal.

[0072] Among them, the temperature conversion circuit is used to determine the remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal, that is, it is possible to obtain the temperature in the remote temperature measuring device locally, avoiding the problem of integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring, which will lead to a large waste of equipment area and power consumption. Feedback control of the temperature of the environment in which the remote temperature measuring device is located is realized, so that the equipment area and power consumption are reduced, and the stability and reliability of the equipment are improved.

[0073] Figure 4A schematic diagram of the structure of a remote temperature measurement system provided in an embodiment of the present application is shown. Figure 4 As shown, the remote temperature measurement system includes a cooling device 301 and a logic control module 302, and Figure 2 The temperature measuring device 10, the cooling device 301 is connected to the remote temperature measuring device 102 in the temperature measuring device 10 through the logic control module 302, and the logic control module 302 controls the cooling device 301 to cool the remote temperature measuring device 102 according to the electrical signal of the remote temperature measuring device 102.

[0074] Optionally, the cooling device may be a fan or other cooling devices, which is not specifically limited in the embodiments of the present application.

[0075] In the remote temperature measurement system provided by the embodiment of the present application, the logic control module 302 controls the cooling device 301 to cool the remote temperature measurement device 102 according to the electrical signal of the remote temperature measurement device 102, which can reduce the interference of the temperature of the remote temperature measurement device itself on the ambient temperature, ensure the accuracy of the measured temperature, and improve the stability and reliability of the remote temperature measurement system. In addition, the temperature measurement device of the present application is a remote temperature measurement device set at a remote end, and the local temperature measurement device includes a temperature quantization circuit and a temperature conversion circuit; wherein the temperature conversion circuit 101B is used to determine the remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal, that is, it is possible to obtain the temperature in the remote temperature measurement device locally, avoiding the problem of wasting a large amount of equipment area and power consumption by integrating the entire BJT temperature sensor into the device corresponding to the scene requiring temperature monitoring, so that the equipment area and power consumption are reduced, and the stability and reliability of the equipment are improved.

[0076] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0077] Although the optional embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including optional embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0078] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the article or terminal device including the elements.

Claims

1. A temperature measuring device, characterized in that: include: A local temperature measuring device and a remote temperature measuring device connected to the local temperature measuring device and used for integration in a remote end; The local temperature measuring device includes a temperature quantization circuit and a temperature conversion circuit; The temperature conversion circuit is used to control the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to a first control signal, and the temperature quantization circuit is used to send a local voltage signal to the temperature conversion circuit according to a bias current when the temperature quantization circuit is electrically connected to the temperature conversion circuit; the temperature conversion circuit is used to determine a local temperature digital signal based on local voltage conversion result information; When the local voltage conversion is completed, the following conditions are met: ， ； in, is the probability of the bias current occurring when the local voltage is converted, and the local temperature measuring device generates a local voltage according to the code stream information of the temperature conversion circuit. or ; is the local voltage conversion result; is the number of cycles of local voltage conversion; is the voltage difference coefficient; The local voltage conversion result satisfy: ； The local temperature digital signal satisfies: ； in, is the charge, is the bandgap reference voltage, is the ratio of the multiples of the bias current when the local voltage change is generated; k is a constant; is the local temperature digital signal; is the slope of the local voltage conversion result relative to the local temperature information; The temperature conversion circuit is further used to control the remote temperature measuring device and the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the second control signal, and the temperature quantization circuit is further used to send a remote voltage signal for quantifying the remote temperature to the temperature conversion circuit according to the bias current when the remote temperature measuring device and the temperature quantization circuit are both electrically connected to the temperature conversion circuit; The temperature conversion circuit is used to determine a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal; Remote voltage satisfy: ； in, is the remote voltage; The ratio of the multiples of the bias current when producing the remote voltage change; is the remote temperature digital signal; when the remote voltage conversion is completed, it satisfies: ， ； in, is the probability of the bias current occurring during remote voltage conversion; is the remote voltage conversion result; ； is the number of cycles of remote voltage conversion; is the slope of the remote voltage conversion result relative to the remote temperature information; The remote temperature digital signal satisfies: 。 2. A temperature measurement method, characterized in that: The temperature measuring device according to claim 1, wherein the temperature measuring device comprises a local temperature measuring device and a remote temperature measuring device connected to the local temperature measuring device and integrated in a remote end; the local temperature measuring device comprises a temperature quantization circuit and a temperature conversion circuit; The temperature conversion circuit controls the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the first control signal, or controls the remote temperature measuring device and the temperature quantization circuit to be electrically connected to the temperature conversion circuit according to the second control signal; The temperature quantization circuit sends a local voltage signal to the temperature conversion circuit according to the bias current when the temperature quantization circuit is electrically connected to the temperature conversion circuit, or the temperature quantization circuit is further used to send a remote voltage signal for quantifying a remote temperature to the temperature conversion circuit according to the bias current when both the remote temperature measuring device and the temperature quantization circuit are electrically connected to the temperature conversion circuit; The temperature conversion circuit determines a remote temperature digital signal according to the local voltage signal, the remote voltage signal and the local temperature digital signal.

3. A remote temperature measurement system, characterized in that: include: Cooling device and logic control module, and, According to the temperature measuring device as described in claim 1, the cooling device is connected to the remote temperature measuring device in the temperature measuring device through the logic control module, and the logic control module controls the cooling device to cool the remote temperature measuring device according to the electrical signal of the remote temperature measuring device.

4. The system according to claim 3, characterized in that The cooling device comprises a fan.

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