Building Detection System

Abstract

The present invention provides a building detection system, belonging to the technical field of building detection, including: a thermoelectric battery embedded in the building to be measured; a storage battery electrically connected to the thermoelectric battery and embedded in the building to be measured; a detection device electrically connected to the storage battery and embedded in the building to be measured; and a signal transmitting and receiving device electrically connected to the detection device. Technical effects: Since the above devices are all embedded in the building to be measured, there is no need to damage the building structure during the detection process. In the form of self-power generation, there is no need to externally connect signal lines and power lines. The health status of the building structure is detected by the detection device, and the signal transmitting and receiving device is used to realize signal transmission and reception, so as to detect the building structure in real time, upgrade ordinary buildings into intelligent buildings with self-checking capabilities, which can save a large amount of manpower and material resources, and avoid the situation of missing potential hazard points or serious quality problems due to the limitations of detection frequency and detection range during manual detection.

Description

Technical Field

[0001] The present invention belongs to the technical field of building detection, and more specifically, relates to a building detection system. Background Art

[0002] During the use of a building, since the building structure has a certain lifespan, it is necessary to regularly detect the building to understand its health condition and prevent property losses and endangerment to people's lives due to poor local quality or damage.

[0003] In the actual detection process, taking the corrosion condition of the steel bars in concrete as an example, generally two methods are adopted. One is destructive testing, directly detecting the damage condition of the steel bars; the other is to set up embedded detection devices for detection. Among the above two methods, the first method will obviously cause direct damage to the concrete structure, and even if repaired, there will still be potential safety hazards; the second method avoids damaging the concrete structure, but it is necessary to reserve external signal lines and power lines, and the position where the external wiring extends out of the concrete structure becomes a weak part and is prone to becoming a potential hazard of steel bar corrosion.

[0004] Therefore, how to detect the building structure without damaging the building and without external wiring is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of the present invention is to provide a building detection system, aiming to solve the technical problem of how to detect the building structure without damaging the building and without external wiring.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: providing a building detection system, including: a thermoelectric battery embedded in the building to be measured; a storage battery electrically connected to the thermoelectric battery and embedded in the building to be measured; a detection device electrically connected to the storage battery and embedded in the building to be measured; and a signal transmitting and receiving device electrically connected to the detection device.

[0007] As another embodiment of the present invention, the thermoelectric battery includes: a first outer casing; a first power generation material body disposed in the first outer casing; a first accommodating cavity at least partially disposed in the first outer casing and connected to the first power generation material body, the first power generation material body extending into the first accommodating cavity or closely adjacent to the outer wall of the first accommodating cavity; a heat-conducting liquid disposed in the first accommodating cavity; and a transmission mechanism including a first rotating part and a second rotating part disposed in the first accommodating cavity, and a shape memory alloy body disposed around the first rotating part and the second rotating part, the first rotating part and the second rotating part being spaced apart along the extending direction of the first power generation material body.

[0008] As another embodiment of the present invention, a heat insulation layer is provided between the first outer casing and the first accommodating cavity, and the heat insulation layer at least covers the extension length range of the shape memory metal body.

[0009] As another embodiment of the present invention, one end of the first accommodating cavity away from the first power generation material body extends beyond the heat insulation layer, and the first outer casing has an opening at one end away from the first power generation material body, so that one end of the first accommodating cavity is exposed.

[0010] As another embodiment of the present invention, the thermoelectric battery includes: a second outer casing; a second power generation material body disposed in the second outer casing, which is a second accommodating cavity with a hollow structure; and an isotope heat source module, including a heat source body disposed in the second accommodating cavity and a power mechanism connected to the heat source body, the power mechanism is electrically connected to the storage battery, and the power mechanism is used to drive the heat source body to move along the extension direction of the second accommodating cavity.

[0011] As another embodiment of the present invention, the isotope heat source module further includes a limiting member disposed on the heat source body, the power mechanism includes a power contact disposed on the heat source body, the power contact is in contact with the limiting member, and a circuit is formed between the limiting member, the power mechanism and the storage battery. When the relative position between the power contact and the limiting member changes, the on-off of the circuit is controlled.

[0012] As another embodiment of the present invention, the limiting member includes a first conductive section, an intermediate insulating section and a second conductive section connected in sequence. The first conductive section and the second conductive section are respectively electrically connected to the storage battery through a double-throw switch; when the power contact contacts the first conductive section, the power mechanism, the first conductive section and the storage battery form a first circuit; when the power contact contacts the second conductive section, the power mechanism, the second conductive section and the storage battery form a second circuit; when the power contact contacts the intermediate insulating section, the first circuit or the second circuit is disconnected; wherein, the double-throw switch controls the conduction of the first circuit or the second circuit.

[0013] As another embodiment of the present invention, the first conductive section and the second conductive section respectively extend out of the heat source body. A capacitor is connected in parallel to the power mechanism. When the first conductive section or the second conductive section presses against the inner wall of the second accommodating cavity, and the power contact contacts the intermediate insulating section resulting in the disconnection of the first circuit or the second circuit, the power mechanism can drive the heat source body and the power contact to continue moving until they contact the second conductive section or the first conductive section.

[0014] As another embodiment of the present invention, a charging protection module is electrically connected between the storage battery and the thermoelectric battery, for sensing the current size, direction and output power.

[0015] As another embodiment of the present invention, an electrode reversal module electrically connected to the charging protection module is further provided between the storage battery and the thermoelectric battery for adjusting the charging direction.

[0016] The building detection system provided by the present invention has at least the following technical effects: compared with the traditional technology, in the building detection system provided by the present invention, a thermoelectric battery, a storage battery, a detection device and a signal transmitting and receiving device are pre-buried in the inspected building, the thermoelectric battery is used for self-generation to improve the utilization efficiency of geothermal energy, and the storage battery is used to provide the detection device with a more stable output power to reduce the volatility of the output power. Since the above-mentioned devices are all pre-buried in the inspected building, there is no need to destroy the building structure during the detection process, and the self-generation form is adopted, and there is no need to connect signal lines and power lines through electric wires. The health status of the building structure is detected by the detection device, and the signal transmitting and receiving device is used to realize signal transmission and reception, and the building structure is detected in real time, so that ordinary buildings are upgraded to smart buildings with self-inspection capabilities, which can save a lot of manpower and material resources, and avoid the situation where hidden dangers are missed or serious quality problems occur due to the limitations of detection frequency and detection range during manual detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a building detection system provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the structure of a building detection system provided by an embodiment of the present invention from another angle;

[0020] Figure 3 A schematic diagram of the structure of a thermoelectric battery provided by an embodiment of the present invention;

[0021] Figure 4 A schematic diagram of the structure of a thermoelectric battery provided by another embodiment of the present invention;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure of the isotope heat source module in the structure shown;

[0023] Figure 6 is Figure 4 a schematic diagram when the isotope heat source module in the shown structure moves upward from the lower end to the upper end;

[0024] Figure 7 is Figure 4 a schematic diagram when the isotope heat source module in the shown structure moves downward from the upper end to the lower end;

[0025] Figure 8 is Figure 4 a schematic diagram of the cooperation between the limiting member and the heat source body in the shown structure;

[0026] Figure 9 is a schematic diagram of the connection between the storage battery and the thermoelectric battery in an embodiment of the present invention;

[0027] Figure 10 is a schematic diagram of the electrode inversion module adjusting the charging direction in an embodiment of the present invention.

[0028] In the figure:

[0029] 10, building detection system 100, thermoelectric battery 110, first housing

[0030] 120, first power generation material body 130, first accommodating cavity 140, heat-conducting liquid

[0031] 150, transmission mechanism 152, first rotating part 154, second rotating part

[0032] 156, shape memory alloy body 160, heat-insulating layer 170, cavity cover

[0033] 182, positive electrode of the power generation end 184, negative electrode of the power generation end 200, thermoelectric battery

[0034] 210, second housing 220, second power generation material body 230, isotope heat source module

[0035] 231, heat source body 232, power mechanism 233, limiting member

[0036] 234, power contact 235, first conductive section 236, intermediate insulating section

[0037] 237, second conductive section 238, double-throw switch 240, circuit

[0038] 242, first circuit 244, second circuit 250, baffle

[0039] 260, guiding member 272, card slot 274, elastic member

[0040] 300, battery 310, positive electrode of charging terminal 320, negative electrode of charging terminal

[0041] 400, detection device 500, signal transmitting and receiving device 600, signal relay device

[0042] 700, charging protection module 800, electrode reversal module 810, brush

[0043] 20. Tested building 22. Stirrups 24. Steel bars

[0044] 30. Ground DETAILED DESCRIPTION

[0045] 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.

[0046] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0047] Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

[0048] Please also read Figures 1 to 10 Now, the building detection system 10 provided in an embodiment of the present invention is described.

[0049] See also Figure 1 and Figure 2 The embodiment of the present invention provides a building detection system 10, comprising: a temperature difference battery (100 / 200), which is pre-buried in the building 20 to be detected; a storage battery 300, which is electrically connected to the temperature difference battery (100 / 200) and is pre-buried in the building 20 to be detected; a detection device 400, which is electrically connected to the storage battery 300 and is pre-buried in the building 20 to be detected; and a signal transmitting and receiving device 500, which is electrically connected to the detection device 400.

[0050] It should be noted that the building detection system 10 provided in the embodiment of the present invention can be applied to the detected building 20 built on the ground 30, and is used to automatically detect the health status of the building. The building detection system 10 can be specifically set in structures such as piers, foundations, roadbeds, and soil piles, and there is no limitation on the use environment. In the embodiment of the present invention, the building detection system 10 is used to detect the condition of bridge piers as an example for description.Figure 1 and Figure 2 As shown in Figure 2 , it is a schematic installation diagram of the building detection system 10. It can be understood that the building detection system 10 is embedded inside the bridge pier. There is no cross-hatching in the figure, and it is only for showing the structural relationship schematically.

[0051] The thermoelectric battery (100 / 200) generates electricity relying on the geothermal difference, that is, it generates electricity by using the temperature difference at both ends of the power generation material. When in use, one end is above the ground 30 and the other end is below the ground 30 to achieve a large temperature difference, increase the power generation capacity, and achieve the self-power generation effect. In this embodiment, there is no need to externally connect signal lines and power lines through wires, without damaging the building structure, and it has stronger adaptability and can be used in any conventional ground with a large temperature difference.

[0052] Since the power generation process of the thermoelectric battery (100 / 200) depends on the temperature difference at both ends of the power generation material, and due to the volatility of temperature changes, therefore, the output power of the thermoelectric battery (100 / 200) also has large fluctuations. In order to enable the thermoelectric battery (100 / 200) to provide a power source with relatively stable power for electrical equipment, a storage battery 300 is configured for the thermoelectric battery (100 / 200) to reduce the volatility of the output power.

[0053] The detection device 400 adopts a durable automatic detection device in the prior art. According to the parameters to be detected, one or more detection devices 400 can be set. For example, it can be a reinforcing bar corrosion meter, a reinforcing bar stress and strain detector, a concrete stress and strain detector, etc. For example, Figure 1 and Figure 2 As shown, the detection device 400 is a reinforcing bar corrosion meter, which can detect the corrosion condition of the stirrup 22 or the reinforcing bar 24.

[0054] The signal transmitting and receiving device 500 transmits the collected data outward and receives instructions wirelessly. When the power is sufficient, the signal transmitting and receiving device 500 can directly contact the remote control system through the mobile communication base station; when the power is insufficient, a signal relay device 600 can be set on the surface of the building 20 to be measured. By amplifying the weak signal of the signal transmitting and receiving device 500, it is connected to the remote control system through the mobile communication base station. The power source of the signal relay device 600 can be a solar panel or the power grid, etc.

[0055] The building detection system 10 provided by the embodiment of the present invention has at least the following technical effects: Compared with the conventional technology, in the building detection system 10 provided by the embodiment of the present invention, a temperature difference battery (100 / 200), a storage battery 300, a detection device 400 and a signal transmitting and receiving device 500 are pre-buried in the detected building 20, and the temperature difference battery (100 / 200) is used for self-generation to improve the utilization efficiency of geothermal energy, and the storage battery 300 is used to provide the detection device 400 with a more stable output power to reduce the volatility of the output power. Since the above-mentioned devices are all pre-buried in the detected building 20, there is no need to destroy the building structure during the detection process, and the self-generation form is adopted, and there is no need to connect signal lines and power lines through electric wires. The health status of the building structure is detected by the detection device 400, and the signal transmitting and receiving device 500 is used to realize signal transmission and reception, and the building structure is detected in real time, so that ordinary buildings are upgraded to smart buildings with self-inspection capabilities, which can save a lot of manpower and material resources, and avoid the situation where hidden dangers are missed or serious quality problems occur due to the limitations of detection frequency and detection range during manual detection.

[0056] There is no limitation on the specific structure of the temperature difference battery, which is described below with an example.

[0057] See also Figure 3 As an embodiment of the present invention, the thermoelectric battery 100 includes: a first outer shell 110; a first power generation material body 120, which is arranged in the first outer shell 110; a first accommodating cavity 130, which is at least partially arranged in the first outer shell 110 and connected to the first power generation material body 120, and the first power generation material body 120 extends into the first accommodating cavity 130 or is close to the outer wall of the first accommodating cavity 130; a heat-conducting liquid 140, which is arranged in the first accommodating cavity 130; and a transmission mechanism 150, including a first rotating part 152 and a second rotating part 154 arranged in the first accommodating cavity 130, and a memory metal body 156 arranged around the first rotating part 152 and the second rotating part 154, and the first rotating part 152 and the second rotating part 154 are arranged at intervals along the extension direction of the first power generation material body 120.

[0058] According to the Seebeck effect, the bridge pier with the thermoelectric cell 100 can be embedded in the concrete, so that the two ends of the thermoelectric cell 100 are respectively set at the two places with the largest temperature difference in the measured building 20, so as to achieve the highest power generation efficiency. It can be understood that in practical applications, the thermoelectric cell 100 can be a single cell, or multiple cells connected in series and / or in parallel. The first power generation material body 120 is made of a metal conductor or a semiconductor material. The thermoelectric cell 100 formed by multiple cells can achieve higher power generation efficiency and higher output power.

[0059] Since the thermoelectric battery 100 generally has a relatively long length in the use environment, a battery housing with sufficient strength is required to ensure the integrity and wholeness of the entire battery. Also, since one end of the thermoelectric battery 100 is disposed below the ground 30 and the other end is disposed above the ground 30, in order to prevent the temperature difference between the two ends of the first power generation material body 120 from decreasing due to the heat conduction problem of the battery itself, in this embodiment, the first housing body 110 generally does not use materials with good thermal conductivity such as metals, and materials with poor thermal conductivity such as plastics can be used as a substitute.

[0060] In addition, the thermoelectric battery 100 can be embedded in a concrete rod. During installation, the concrete rod embedded with the thermoelectric battery 100 is directly installed inside the building under test 20. In order to avoid the influence of steel bars on the heat conduction of the thermoelectric battery 100, the thermoelectric battery 100 should be installed at a position far from the steel bars.

[0061] In this embodiment, there are no restrictions on the shapes of the first housing body 110, the first power generation material body 120, and the first accommodating cavity 130. For example, the first housing body 110 and the first accommodating cavity 130 can be cylindrical, or can be in the shape of a cube, etc., and the first power generation material body 120 can be cylindrical, or can be in the shape of a prism, etc. It can be understood that both the first housing body 110 and the first accommodating cavity 130 have a certain wall thickness.

[0062] Taking the installation state of the thermoelectric battery 100 as a reference, the upper end of the first power generation material body 120 is connected to the top end of the first housing body 110, and the lower end of the first power generation material body 120 extends into the first accommodating cavity 130, or the lower end of the first power generation material body 120 is close to the outer wall of the top of the first accommodating cavity 130, so that the heat-conducting liquid 140 in the first accommodating cavity 130 can transfer heat to the first power generation material body 120, increasing the temperature difference between the two ends of the first power generation material body 120. In the extending direction of the first power generation material body 120, on the one hand, there is a temperature difference between the two ends of the first power generation material body 120, and on the other hand, the heat-conducting liquid 140 is used to increase the temperature difference between the two ends of the first power generation material body 120. In the case where the length of the first power generation material body 120 is relatively short, the effect of having a relatively large temperature difference can also be achieved, ensuring the power generation efficiency and output power.

[0063] The heat-conducting liquid 140 should be a liquid with good heat-conducting performance and low viscosity, and heat-conducting liquids 140 with different heat-conductivity coefficients can be selected according to requirements such as the burial depth of the thermoelectric battery 100.

[0064] The shape memory alloy body 156 is equivalent to a conveyor belt. When the preset temperature is reached, it can spontaneously deform and rotate around the first rotating part 152 and the second rotating part 154, thereby driving the heat-conducting liquid 140 at the bottom of the first accommodating cavity 130 to the top, reducing or increasing the temperature at the lower end of the first power generation material body 120, and increasing the temperature difference between the two ends of the first power generation material body 120. When the preset temperature is not reached, the shape memory alloy body 156 stops rotating until the temperature becomes the preset temperature again, and so on. One set of the transmission mechanism 150 can be provided, or multiple sets can be provided at intervals.

[0065] It can be understood that due to seasonal changes, the temperature difference between the two ends of the first power generation material body 120 may reverse. Therefore, the heat-conducting liquid 140 can reduce or increase the temperature at the lower end of the first power generation material body 120 to increase the temperature difference between the two ends of the first power generation material body 120.

[0066] In addition, the first rotating part 152 and the second rotating part 154 can be fixed relative to the first accommodating cavity 130 or can rotate relative to the first accommodating cavity 130, as long as the annular structure of the shape memory alloy body 156 is supported and maintained. When the first rotating part 152 and the second rotating part 154 can rotate relative to the first accommodating cavity 130, that is, when the shape memory alloy body 156 can drive the first rotating part 152 and the second rotating part 154 to rotate, the wear during the rotation of the shape memory alloy body 156 can be reduced.

[0067] In this embodiment, the shape memory alloy body 156 uses the method of spontaneous deformation and automatic circulation to eliminate many devices necessary for steam power generation, such as steam generators and circulation devices, etc., making the entire device smaller in size, easier to install, and reducing the construction and maintenance costs. By using the cooperation method of the first accommodating cavity 130, the heat-conducting liquid 140 and the shape memory alloy body 156, the usage amount of the raw materials of the first power generation material body 120 can be reduced, the diving depth of the thermoelectric battery 100 can be increased, and it can even reach more than ten meters below 30 meters underground, increasing the adaptability of the battery and improving the geothermal utilization efficiency. It can be understood that when the diving depth of the thermoelectric battery 100 is relatively long, one set of the transmission mechanism 150 can be provided in the first accommodating cavity 130, or multiple sets of the transmission mechanism 150 can be provided sequentially along the diving direction.

[0068] The thermoelectric battery 100 provided in this embodiment has at least the following technical effects: Compared with the traditional technology, in the thermoelectric battery 100 provided in this embodiment, a first accommodating cavity 130 is provided at one end of the first power generation material body 120. A heat-conducting liquid 140 and a transmission mechanism 150 are provided in the first accommodating cavity 130. Utilizing the characteristic that the shape memory alloy body 156 can spontaneously deform when the temperature changes to a certain extent, the shape memory alloy body 156 can rotate around the first rotating part 152 and the second rotating part 154. As a result, the heat-conducting liquid 140 flows in the first accommodating cavity 130, causing the temperature of one end of the first power generation material body 120 to decrease or increase, increasing the temperature difference between the two ends of the first power generation material body 120, and improving the power generation efficiency. With this arrangement, on the basis of ensuring the power generation efficiency, the usage amount of the first power generation material body 120 can be reduced, the manufacturing cost can be lowered, and the geothermal utilization efficiency can be improved. In addition, the shape memory alloy body 156 can deform and rotate spontaneously, eliminating the need for an additional driving mechanism, simplifying the overall structure, and further reducing the manufacturing cost.

[0069] There is no limitation on the specific structures of the first rotating part 152 and the second rotating part 154. Examples are given below.

[0070] Please refer to Figure 3 , as a specific embodiment, the first rotating part 152 includes a first rotating shaft mounted on the inner wall of the first accommodating cavity 130, and the first rotating shaft is rotatably arranged relative to the first accommodating cavity 130; the second rotating part 154 includes a second rotating shaft mounted on the inner wall of the first accommodating cavity 130, and the second rotating shaft is rotatably arranged relative to the first accommodating cavity 130. Specifically, two corresponding groups of accommodating holes are formed on the inner wall of the first accommodating cavity 130. Each group of accommodating holes includes two accommodating holes, and the two groups of accommodating holes correspond to the first rotating part 152 and the second rotating part 154 respectively. In this embodiment, the first rotating part 152 and the second rotating part 154 are arranged to be rotatable relative to the first accommodating cavity 130. When the shape memory alloy body 156 drives the first rotating part 152 and the second rotating part 154 to rotate, the wear of the shape memory alloy body 156 during rotation can be reduced.

[0071] Taking the first rotating part 152 as an example, bearings can be respectively installed in the two accommodating holes. The first rotating shaft is mounted on the two bearings and can rotate relative to each other, reducing mechanical damage to the first accommodating cavity 130. Of course, the first rotating shaft can also be directly installed in the accommodating holes. In addition, steps can be respectively formed at both ends of the first rotating shaft, and the two steps are engaged in the two accommodating holes to prevent the first rotating shaft from slipping off. The second rotating part 154 is arranged in the same way as the first rotating part 152 and will not be elaborated here.

[0072] Further, in order to ensure that the shape memory metal body 156 can rotate around the first rotation axis and the second rotation axis, in this embodiment, anti-slip patterns are provided on the surfaces of both the first rotation axis and the second rotation axis. With this arrangement, the friction between the shape memory metal body 156 and the first rotation axis and the second rotation axis can be increased, preventing slipping and reducing wear on the shape memory metal body 156. It can be understood that there is no limitation on the specific shape of the anti-slip pattern.

[0073] In addition, patterns or protrusions may be provided on the outer surface of the shape memory metal body 156, which can increase the efficiency of driving the heat-conducting liquid 140 to circulate. It can be understood that there is no limitation on the specific shape of the patterns or protrusions, and it is preferable to achieve the purpose of increasing the efficiency of driving the heat-conducting liquid 140 to circulate as much as possible.

[0074] As another specific implementation manner, the first rotating part 152 includes a fixed shaft fixed to the inner wall of the first accommodating cavity 130, and a rotating wheel sleeved on the fixed shaft, and the rotating wheel can rotate relative to the fixed shaft. Anti-slip patterns may also be provided on the surface of the rotating wheel. Similarly, the rotation setting of the first rotating part 152 can be achieved. The second rotating part 154 is arranged in the same way as the first rotating part 152, and will not be elaborated here.

[0075] In order to increase the range of the shape memory metal body 156 driving the heat-conducting liquid 140, as a specific implementation manner, the shape memory metal body 156 is a conveyor belt structure arranged around the first rotating part 152 and the second rotating part 154, and the center lines of both the first rotating part 152 and the second rotating part 154 intersect with the center line of the first accommodating cavity 130. In this embodiment, setting the shape memory metal body 156 as a conveyor belt structure, compared with a filamentous or rod-shaped structure, increases the contact area with the heat-conducting liquid 140, can increase the driving amount during rotation, improve the driving efficiency, and thus enhance the power generation efficiency. At the same time, compared with a thick plate-shaped structure, it can reduce the occupied volume to increase the accommodating volume of the heat-conducting liquid 140, and can also reduce the difficulty of rotation by reducing the weight. In addition, it also increases the contact area between itself and the first rotating part 152 and the second rotating part 154, which is beneficial to the followability of the first rotating part 152 and the second rotating part 154.

[0076] It can be understood that taking the cross-section of the first accommodating cavity 130 as a circle as an example, the extended width of the shape memory metal body 156 is less than the radial dimension of the first accommodating cavity 130. If taking the cross-section of the first accommodating cavity 130 as a square as an example, the extended width of the shape memory metal body 156 is less than the side length dimension of the first accommodating cavity 130. With this arrangement, it is possible to avoid mechanical collision between the shape memory metal body 156 and the first accommodating cavity 130 during the spontaneous deformation process, and to avoid hindering the rotation process of the shape memory metal body 156.

[0077] The centerlines of both the first rotating part 152 and the second rotating part 154 intersect with the centerline of the first accommodating cavity 130. It can be understood that, setting the plane where the centerline of the first accommodating cavity 130 is located as the central plane, the first accommodating cavity 130 can be formed into two semi - structures. Both the first rotating part 152 and the second rotating part 154 are located in this central plane, making the lengths of the first rotating part 152 and the second rotating part 154 in the longest state, so as to make the extension width of the shape memory alloy body 156 larger. For example, if the cross - section of the first accommodating cavity 130 is circular and both the first rotating part 152 and the second rotating part 154 are rotating shafts, then the axes of both the first rotating part 152 and the second rotating part 154 coincide with the radial line of the first accommodating cavity 130.

[0078] Please refer to Figure 3 , in order to reduce the heat exchange between the heat - conducting liquid 140 and the surrounding concrete layer or other material layers below the ground 30 during the heat - conducting process. As a specific implementation manner, a heat - insulating layer 160 is provided between the first outer casing 110 and the first accommodating cavity 130. The heat - insulating layer 160 at least covers the extension length range of the shape memory alloy body 156. Specifically, the heat - insulating layer 160 is arranged in a circle around the first accommodating cavity 130 and is tightly connected between the inner wall of the first outer casing 110 and the outer wall of the first accommodating cavity 130 to prevent heat from dissipating through the gaps. On the basis of reducing battery raw materials, the heat - insulating layer 160 needs to at least cover the length range of the shape memory alloy body 156 along the extension direction of the first power - generating material body 120, so as to reduce the heat exchange between the heat - conducting liquid 140 within the covered range of the shape memory alloy body 156 and the surrounding concrete layer or other material layers below the ground 30. Of course, in order to obtain a better heat - insulating effect, the covered range of the heat - insulating layer 160 can be appropriately adjusted.

[0079] Furthermore, the first accommodating cavity 130 includes a cavity cover 170 connected to the first power - generating material body 120, and the heat - insulating layer 160 covers the extension length range of the cavity cover 170. It can be understood that the extension length direction of the cavity cover 170 refers to the extension direction of the first power - generating material body 120. Specifically, the cavity cover 170 is made of metal. When the first power - generating material body 120 is arranged closely against the top outer wall of the cavity cover 170, heat - conducting silicone oil can be applied on both the first power - generating material body 120 and the cavity cover 170 to increase the heat transfer efficiency between the two. In addition, the heat - insulating layer 160 covering the extension length range of the cavity cover 170 can further ensure its heat - insulating effect.

[0080] Furthermore, one end of the first accommodating cavity 130 away from the first power generation material body 120 extends beyond the heat insulation layer 160, and the first outer casing 110 has an opening at the end away from the first power generation material body 120, so that one end of the first accommodating cavity 130 is exposed. Specifically, the lower end of the first outer casing 110 is flush or substantially flush with the lower end of the heat insulation layer 160 when in the installed state, and the first accommodating cavity 130 extends beyond the first outer casing 110 by a certain distance. In this embodiment, the lower end of the first accommodating cavity 130 is exposed in the surrounding concrete layer or other material layers below the ground 30, which can enable the heat-conducting liquid 140 to exchange heat with the surrounding concrete layer or other material layers below the ground 30, transfer the low temperature or high temperature in the surrounding environment into the heat-conducting liquid 140, increase or decrease the temperature of the heat-conducting liquid 140, increase the temperature difference between the two ends of the first power generation material body 120, and improve the power generation efficiency.

[0081] Please refer to Figures 4 to 7 , as another embodiment of the present invention, the thermoelectric battery 200 includes: a second outer casing 210; a second power generation material body 220, disposed in the second outer casing 210, which is a second accommodating cavity with a hollow structure; and an isotope heat source module 230, including a heat source body 231 disposed in the second accommodating cavity and a power mechanism 232 connected to the heat source body 231. The power mechanism 232 is electrically connected to the storage battery 300, and the power mechanism 232 is used to drive the heat source body 231 to move along the extending direction of the second accommodating cavity.

[0082] According to the Seebeck effect, the bridge pier with the thermoelectric battery 200 can be embedded in the concrete, so that the two ends of the thermoelectric battery 200 are respectively arranged at the two places with the largest temperature difference of the measured building 20, realizing the highest power generation efficiency. It can be understood that in practical applications, the thermoelectric battery 200 can be a single battery or a plurality of batteries connected in series and / or in parallel. The second power generation material body 220 is made of a metal conductor or a semiconductor material. The thermoelectric battery 200 formed by a plurality of batteries can achieve higher power generation efficiency and higher output power.

[0083] Since the thermoelectric battery 200 is generally long in the use environment, a battery outer casing with sufficient strength is required to ensure the integrity and wholeness of the entire battery. Also, since one end of the thermoelectric battery 200 is disposed below the ground 30 and the other end is disposed above the ground 30, in order to prevent the temperature difference between the two ends of the second power generation material body 220 from becoming smaller due to the heat conduction problem of the battery itself, in this embodiment, the second outer casing 210 generally does not use materials with good heat conductivity such as metal, and can be replaced with materials with poor heat conductivity such as plastic. At the same time, considering the use and use environment of the thermoelectric battery 200, the second outer casing 210 is generally fully sealed and radiation-proof.

[0084] In addition, the thermoelectric battery 200 can be embedded in the concrete rod. During installation, the concrete rod embedded with the thermoelectric battery 200 is directly installed inside the building 20 to be measured. To avoid the influence of steel bars on the heat conductivity of the thermoelectric battery 200, the thermoelectric battery 200 should be installed away from the steel bars.

[0085] In this embodiment, there is no limitation on the shapes of the second outer shell 210 and the second power generation material body 220. For example, the second outer shell 210 and the second power generation material body 220 can be cylindrical, cubic, or other shapes. It can be understood that both the second outer shell 210 and the second power generation material body 220 have a certain wall thickness and are generally tightly connected. There is a gap between them in the drawings for the purpose of distinguishing them.

[0086] The second power generation material body 220 is a second accommodating cavity with a hollow structure. Since one end of the thermoelectric battery 200 is located below the ground 30 and the other end is located above the ground 30 in the installation state, the second power generation material body 220 is also one end below the ground 30 and the other end above the ground 30, and the second accommodating cavity correspondingly has one end below the ground 30 and the other end above the ground 30. Therefore, the extending direction of the second accommodating cavity can be understood as the distribution direction from above the ground 30 to below the ground 30. In other words, the two ends of the second power generation material body 220 that sense the maximum temperature difference are the two ends of the second accommodating cavity, and the connecting line direction between the two ends is the extending direction of the second accommodating cavity. Taking the installation state of the thermoelectric battery 200 as an example, the "upper end" or "lower end" mentioned in this embodiment refers to the upper end and the lower end of the inner wall of the second accommodating cavity, and no further explanation will be given.

[0087] An isotope heat source module 230 is arranged in the second accommodating cavity. The isotope heat source module 230 can increase the temperature difference between the two ends of the second power generation material body 220. It mainly utilizes geothermal energy and supplements with isotope heat source utilization, increasing the adaptability of the thermoelectric battery 200 to environmental changes, and improving the power generation efficiency and power generation capacity. When the temperatures at both ends of the second power generation material body 220 are close, due to the existence of the isotope heat source module 230, it ensures that the thermoelectric battery 200 has a certain power generation capacity.

[0088] At the same time, a single isotope heat source battery has a large radiation, which affects environmental protection. In this embodiment, the thermoelectric battery 200 comprehensively utilizes geothermal difference power generation and isotope heat source power generation, which can reduce the radiation of the battery and is beneficial to environmental protection.

[0089] Due to seasonal changes or abnormal temperature changes, the temperature difference at both ends of the second power generation material body 220 may reverse. Therefore, in this embodiment, the isotope heat source module 230 includes a heat source body 231 and a power mechanism 232. The power mechanism 232 can drive the heat source body 231 to move along the extension direction of the second accommodation cavity, so that the isotope heat source module 230 is always on the side with a higher temperature. When the upper end of the second power generation material body 220 has a higher temperature and the lower end has a lower temperature, the isotope heat source module 230 is in the upper position; when the upper end of the second power generation material body 220 has a lower temperature and the lower end has a higher temperature, the isotope heat source module 230 is in the lower position. For example, in summer, it is at one end above the ground 30, and in winter, it is at one end below the ground 30, increasing the temperature difference at both ends and achieving the effect of improving power generation efficiency.

[0090] It can be understood that the power mechanism 232 is controlled to start and stop by a control system. The control system can be powered by a storage battery 300. The control system can use existing technologies such as comparators and gate logic circuits to determine whether the surrounding environment is in a state where the isotope heat source module 230 should be moved. When the control system determines that the isotope heat source module 230 needs to be moved, the power mechanism 232 drives the heat source body 231 to move. When the control system determines that the isotope heat source module 230 does not need to be moved, the power mechanism 232 remains in a standby state, and different moving directions correspond to different judgment signals.

[0091] Assume that the isotope heat source module 230 is only moved when the season changes, and the temperature difference reversal (power generation electrode transformation) caused by abnormal weather within the same season is not considered. At this time, the control system can use existing technologies such as comparators and gate logic circuits to determine whether it is in the stage of seasonal change according to the magnitude of the set power generation and the law of electrode transformation. Of course, a temperature sensor can also be used to detect temperature changes. For example, the judgment criterion can be that the lowest environmental value at one end above the ground is higher than the environmental temperature at one end below the ground, or the highest environmental value at one end above the ground is lower than the environmental temperature at one end below the ground. When the control system determines that the season has changed, the power mechanism 232 drives the heat source body 231 to move to the side with a higher temperature.

[0092] The thermoelectric battery 200 provided in this embodiment has at least the following technical effects: Compared with traditional technologies, in the thermoelectric battery 200 provided in this embodiment, while setting the second power generation material body 220, an isotope heat source module 230 is also set, comprehensively utilizing geothermal difference power generation and isotope heat source power generation, which can improve the adaptability of the battery to changes in the surrounding environment and improve power generation efficiency; at the same time, compared with a single isotope heat source battery, the thermoelectric battery 200 provided in this embodiment has very little radiation, which is beneficial to environmental protection. The power mechanism 232 can drive the heat source body 231 to move, and in an environment where the temperature difference reverses, the utilization rate of the environmental temperature difference can be improved.

[0093] Please refer to Figure 6 and Figure 7 In order to automatically stop when the heat source body 231 moves to the upper end or the lower end, as a specific implementation, the isotope heat source module 230 further includes a limiting member 233 provided on the heat source body 231. The power mechanism 232 includes a power contact 234 provided on the heat source body 231. The power contact 234 is in contact with the limiting member 233. A circuit 240 is formed between the limiting member 233, the power mechanism 232, and the storage battery 300. When the relative position between the power contact 234 and the limiting member 233 changes, the on-off of the control circuit is controlled. In this embodiment, the power contact 234 is an electrical connection contact of the power mechanism 232. The power contact 234 is in contact with the limiting member 233. By changing the position of the power contact 234 relative to the limiting member 233, the circuit 240 can be in a conducting state or an open state.

[0094] Further, please refer to Figure 6 and Figure 7 The limiting member 233 includes a first conductive section 235, an intermediate insulating section 236, and a second conductive section 237 that are connected in sequence. The first conductive section 235 and the second conductive section 237 are respectively electrically connected to the storage battery 300 through a double-throw switch 238. When the power contact 234 contacts the first conductive section 235, a first circuit 242 is formed among the power mechanism 232, the first conductive section 235, and the storage battery 300. When the power contact 234 contacts the second conductive section 237, a second circuit 244 is formed among the power mechanism 232, the second conductive section 237, and the storage battery 300. When the power contact 234 contacts the intermediate insulating section 236, the first circuit 242 or the second circuit 244 is disconnected. Among them, the double-throw switch 238 controls the conduction of the first circuit 242 or the second circuit 244. In this embodiment, the first conductive section 235 and the second conductive section 237 can be made of a metal material, and the intermediate insulating section 236 can be made of a plastic material. The double-throw switch 238 can specifically be a single-pole double-throw switch, which is electrically connected to the above control system. Through the control of the control system, it can be placed in the first circuit 242 or the second circuit 244 to make the first circuit 242 or the second circuit 244 conduct.

[0095] Specifically, as shown in Figure 6As shown, it is assumed that the heat source body 231 is initially located at the lower end. When it needs to be moved to the upper end, the power contact 234 contacts the second conductive section 237, and the double-throw switch 238 is placed in the second circuit 244. The power mechanism 232 drives the heat source body 231, the limiting member 233, and the power contact 234 to move upward. When the three move to the upper end, the limiting member 233 stops moving, and the heat source body 231 and the power contact 234 continue to move to the intermediate insulating section 236, and the second circuit 244 is disconnected. At this time, the power contact 234 can continue to move to the first conductive section 235 by relying on inertia, or the power contact 234 can be made to continue to move to the first conductive section 235 by using a capacitor. At this time, the double-throw switch 238 is still placed in the second circuit 244. Therefore, the first circuit 242 is in an open state, and the heat source body 231 is stationary.

[0096] As Figure 7 shown, when it needs to be moved to the lower end, the power contact 234 contacts the first conductive section 235, and the double-throw switch 238 is placed in the first circuit 242. The power mechanism 232 drives the heat source body 231, the limiting member 233, and the power contact 234 to move downward. When the three move to the lower end, the limiting member 233 stops moving, and the heat source body 231 and the power contact 234 continue to move to the intermediate insulating section 236, and the first circuit 242 is disconnected. At this time, the power contact 234 can continue to move to the second conductive section 237 by relying on inertia, or the power contact 234 can be made to continue to move to the second conductive section 237 by using a capacitor. At this time, the double-throw switch 238 is still placed in the first circuit 242. Therefore, the second circuit 244 is in an open state, and the heat source body 231 is stationary.

[0097] Furthermore, the first conductive section 235 and the second conductive section 237 respectively extend out of the heat source body 231. The power mechanism 232 is connected in parallel with a capacitor. When the first conductive section 235 or the second conductive section 237 presses against the inner wall of the second accommodating cavity, and the power contact 234 contacts the intermediate insulating section 236, resulting in the disconnection of the first circuit 242 or the second circuit 244, the power mechanism 232 can drive the heat source body 231 and the power contact 234 to continue to move to contact the second conductive section 237 or the first conductive section 235. With such a setting, the switching time between the first circuit 242 and the second circuit 244 can be shorter, and the coherence can be better. Of course, the power mechanism 232 can also be other mechanisms that can provide power for a short time, or be electrically connected to other devices that can provide power for a short time.

[0098] In this embodiment, a capacitor is connected in parallel to the power mechanism 232. When the first loop 242 is disconnected due to the first conductive segment 235 being pressed against the upper end of the second receiving cavity, or when the second loop 244 is disconnected due to the second conductive segment 237 being pressed against the lower end of the second receiving cavity, the battery 300 stops supplying power, and the capacitor is used to enable the power mechanism 232 to continue driving the heat source body 231 and the power contact 234 to move. That is, the power contact 234 continues to move from the intermediate insulating segment 236 until it is in full contact with the first conductive segment 235, or the power contact 234 continues to move from the intermediate insulating segment 236 until it is in full contact with the second conductive segment 237. This can make the on / off of the first loop 242 and the second loop 244 more coherent. That is, when the first loop 242 is disconnected, the capacitor is used to make the loop 240 in the connected state of the second loop 244, and only the power supply of the battery 300 needs to be controlled; when the second loop 244 is disconnected, the capacitor is used to make the loop 240 in the connected state of the first loop 242, and only the power supply of the battery 300 needs to be controlled.

[0099] Due to the limited capacitance of the capacitor, the extension length of the intermediate insulating segment 236 is much smaller than the extension lengths of the first conductive segment 235 and the second conductive segment 237.

[0100] In this embodiment, there is no limitation on the structural manner in which the heat source body 231 can drive the power contact 234 to move relative to the limiting member 233, as long as when the limiting member 233 is pressed against the upper end or the lower end, the heat source body 231 and the power contact 234 can generate a relative displacement relative to the limiting member 233. When the limiting member 233 and the heat source body 231 undergo a relative displacement, the limiting member 233 does not separate from the heat source body 231. For example, in the heat source body 231, there is a receiving cavity with upper and lower openings. The first conductive segment 235 extends out from the upper opening, and the second conductive segment 237 extends out from the lower opening. The limiting member 233 is limited in the receiving cavity and can generate a relative displacement relative to the receiving cavity.

[0101] It should be noted that the first conductive segment 235 and the second conductive segment 237 extend out of the heat source body 231 respectively. It can be understood that, visually observed, the first conductive segment 235 and the second conductive segment 237 respectively extend beyond the heat source body 231 in the extending direction.

[0102] In order to make the heat source body 231 and the limiting member 233 more reliable during the movement process and prevent free sliding, the following structural manner can be adopted to achieve this.

[0103] As a specific implementation manner, such as Figure 8As shown in the figure, a clamping groove 272 is provided on the limiting member 233, and an elastic member 274 that fits into the clamping groove 272 is provided on the heat source body 231. When the limiting member 233 does not press against the inner wall of the second accommodating cavity, the elastic member 274 is located within the clamping groove 272, and the heat source body 231 drives the limiting member 233 to move synchronously. When the limiting member 233 presses against the inner wall of the second accommodating cavity, the limiting member 233 stops moving, and the heat source body 231 drives the elastic member 274 to disengage from the clamping groove 272. The heat source body 231 and the power contact 234 continue to move from the intermediate insulating section 236 to the first conductive section 235 or the second conductive section 237. The elastic member 274 can be a structural member with a resetting ability such as an elastic cushion block or a spring, or a combined structure of a spring and a ball.

[0104] As another specific implementation manner, magnets are provided at both the upper and lower ends of the accommodating cavity of the heat source body 231. The two magnets can respectively maintain a relatively stable state of the iron first conductive section 235 and the iron second conductive section 237 by using magnetic force. Alternatively, iron blocks are respectively provided on the first conductive section 235 and the second conductive section 237 (in this case, the first conductive section 235 and the second conductive section 237 are made of non-iron materials), and a magnet is provided at the upper or lower end of the accommodating cavity. When the first conductive section 235 and the second conductive section 237 are respectively adjacent to the position of the magnet, a relatively stable state can be maintained by using magnetic force.

[0105] In order to prevent the limiting member 233 from damaging the second power generation material body 220 when touching the second accommodating cavity, as a specific implementation manner, baffles 250 are respectively provided at both ends of the second accommodating cavity along the extending direction. The two baffles 250 are respectively used to limit the movement of both ends of the limiting member 233. Specifically, baffles 250 are respectively provided at the upper and lower ends within the second accommodating cavity. The baffles 250 can prevent the limiting member 233 from directly touching the second accommodating cavity, reduce mechanical damage to the second power generation material body 220, and increase the service life of the thermoelectric battery 200. When the limiting member 233 moves upward or downward to press against the corresponding baffle 250, the limiting member 233 stops moving, and the heat source body 231 can continue to move a certain distance relative to the limiting member 233. Specifically, the first conductive section 235 of the limiting member 233 presses against the upper baffle 250, and the second conductive section 237 presses against the lower baffle 250.

[0106] There is no limitation on the specific structure of the power mechanism 232. Examples are given below.

[0107] In this embodiment, the power mechanism 232 may include a power source fixed to the inner wall of the second accommodation cavity and a transmission member driven by the power source, and the transmission member is connected to the heat source body 231. Specifically, the power source, the limiting member 233, the control system and the storage battery 300 form the above-mentioned circuit. Generally, the power source is a motor, which is fixed to the upper end or the lower end of the inner wall of the second accommodation cavity, and the power contact 234 is the electrical connection contact of the power source. The power source drives the transmission member to move, and then the transmission member drives the heat source body 231, the limiting member 233 and the power contact 234 to move synchronously. In addition, the power mechanism 232 may also be directly fixed to the heat source body 231. The power mechanism 232 is a rotor-like structure and can reciprocate along the guide member 260, so that the power mechanism 232 and the heat source body 231 move reciprocally along the guide member 260 together. Regarding how the power mechanism 232 cooperates with the heat source body 231 to realize the movement of the heat source body 231, no limitation is made here, as long as the reciprocating movement of the heat source body 231 can be realized.

[0108] As a specific implementation manner, the transmission member includes a driving sprocket disposed adjacent to the upper end, a driven sprocket disposed adjacent to the lower end, and a transmission chain wound around the driving sprocket and the driven sprocket. Specifically, the heat source body 231 is fixedly connected to the transmission chain. The power source drives the driving sprocket to rotate, and the driving sprocket drives the transmission chain to rotate. By driving the driving sprocket clockwise or counterclockwise by the power source, the transmission chain can be rotated in opposite directions, and then the heat source body 231 can be moved from the lower end to the upper end, or from the upper end to the lower end. Of course, the driving sprocket, the driven sprocket and the transmission chain can also be replaced by a driving roller, a driven roller and a conveyor belt respectively, and the effect of driving the heat source body 231 to move can also be achieved.

[0109] As another specific implementation manner, the transmission member includes a screw rod driven by the power source and a nut sleeve threadedly sleeved on the screw rod, and the nut sleeve is fixedly connected to the heat source body 231. Specifically, the extending direction of the screw rod is parallel to the extending direction of the second accommodation cavity. If the power source is disposed at the upper end, one end of the screw rod is connected to the power source, and the other end is disposed adjacent to the lower end or rotatably connected to the lower end. Or, if the power source is disposed at the lower end, one end of the screw rod is connected to the power source, and the other end is disposed adjacent to the upper end or rotatably connected to the upper end. By driving the screw rod to rotate clockwise or counterclockwise by the power source, the nut sleeve can move in opposite directions along the screw rod, and then the heat source body 231 can be moved from the lower end to the upper end, or from the upper end to the lower end.

[0110] Of course, the transmission member can also be in other structural forms, which are not listed here.

[0111] In order to make the heat source body 231 move more smoothly, as a specific embodiment, the isotope heat source module 230 also includes a guide member 260 connected between the two ends of the second accommodating cavity, and the heat source body 231 is sleeved on the guide member 260, or is slidably arranged on the guide member 260. Specifically, the two ends of the guide member 260 are respectively connected to the upper end and the lower end of the inner wall of the second accommodating cavity. The guide member 260 can be a guide rod, and the heat source body 231 is sleeved on the guide rod. During the movement of the heat source body 231, the guide rod plays a guiding role to reduce the shaking of the heat source body 231 during the movement. The guide member 260 can also be a guide plate with a guide groove, and the heat source body 231 has a guide protrusion that cooperates with the guide groove, or the guide member 260 is a guide plate with a guide protrusion, and the heat source body 231 has a guide groove that cooperates with the guide protrusion. During the movement of the heat source body 231, the guide plate plays a guiding role to reduce the shaking of the heat source body 231 during the movement.

[0112] Further, in order to enable the heat source body 231 to be stable and maintain in the current state when it stops, the isotope heat source module 230 also includes a locking member for locking the heat source body 231. The locking member can be a clamp driven by a power source or a parallel driving source, and the clamp is arranged on the heat source body 231, and the clamp can clamp the heat source body 231 on the transmission member or the guide member 260. Alternatively, the locking member can also be a block driven by a power source or a parallel driving source, and the block is arranged on the heat source body 231, and a groove is provided on the transmission member or the guide member 260, and the block can be matched in the groove, so that the heat source body 231 can be clamped in the current state. Of course, the locking member can also be in other structural forms, which are not listed here.

[0113] See also Figure 9 and Figure 10 In order to prevent the power loss of the storage battery 300, as a specific implementation of the embodiment of the present invention, a charging protection module 700 is electrically connected between the storage battery 300 and the thermoelectric battery (100 / 200) for sensing the current size, direction and output power. If the storage battery 300 is not in the state of providing power to the components in the thermoelectric battery (100 / 200), the thermoelectric battery (100 / 200) and the storage battery 300 are allowed to be electrically connected only when the output voltage of the thermoelectric battery (100 / 200) is higher than the input voltage of the storage battery 300, so that the thermoelectric battery (100 / 200) charges the storage battery 300, preventing the voltage from flowing back from the storage battery 300 to the thermoelectric battery (100 / 200), thereby avoiding the power loss of the storage battery 300. Generally, the input voltage of the storage battery 300 must be lower than the maximum output voltage of the thermoelectric battery (100 / 200).

[0114] The charging protection module 700 can sense the magnitude and direction of the current to conduct or disconnect the circuit state with the thermoelectric battery (100 / 200). For example, devices such as a comparator and a relay are used to detect the magnitude and direction of the current and change the circuit state according to the set requirements. The charging protection module 700 can also output power. For example, devices such as a converter and an inverter are used to stably output the voltage. At this time, it can supply power to the components inside the thermoelectric battery (100 / 200), such as supplying power to the power mechanism 232.

[0115] Furthermore, an electrode reversal module 800 electrically connected to the charging protection module 700 is also provided between the storage battery 300 and the thermoelectric battery (100 / 200) for adjusting the charging direction. Due to seasonal changes, the temperature difference at both ends of the first power generation material body 120 or the second power generation material body 220 will reverse, causing the charging electrodes to reverse. In order to enable the thermoelectric battery (100 / 200) to output power to the storage battery 300 in a timely manner, in this embodiment, an electrode reversal module 800 is also provided to adjust the charging direction in a timely manner to ensure that the thermoelectric battery (100 / 200) can be normally charged.

[0116] For example, as Figure 10 shown, the electrode reversal module 800 can use a brush 810 driven by the power provided by the thermoelectric battery (100 / 200) or the storage battery 300 to rotate among multiple contacts formed by the positive electrode 182 of the power generation end, the positive electrode 310 of the charging end, the negative electrode 184 of the power generation end, and the negative electrode 320 of the charging end. When the charging electrode reverses, that is, when the charging current changes direction, the brush 810 is rotated 90 degrees clockwise to enable normal charging. In addition, the electrode reversal module 800 can also use an inverter, a rectifier, or an electromagnetic circuit system with the same function to adjust the charging direction.

[0117] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A building detection system, characterized in that Comprising: A thermoelectric battery, embedded in the building to be measured; A storage battery, electrically connected to the thermoelectric battery and embedded in the building to be measured; A detection device, electrically connected to the storage battery and embedded in the building to be measured; And A signal transmitting and receiving device, electrically connected to the detection device; The thermoelectric battery includes: A first outer casing; A first power generation material body, disposed within the first outer casing; A first accommodating cavity, at least partially disposed within the first outer casing, connected to the first power generation material body, and the first power generation material body extends into the first accommodating cavity or abuts against the outer wall of the first accommodating cavity; A heat-conducting liquid, disposed within the first accommodating cavity; and A transmission mechanism, including a first rotating portion and a second rotating portion disposed within the first accommodating cavity, and a shape memory alloy body disposed around the first rotating portion and the second rotating portion, the first rotating portion and the second rotating portion being spaced apart along the extending direction of the first power generation material body; Alternatively, the thermoelectric battery includes: A second outer casing; A second power generation material body, disposed within the second outer casing and being a second accommodating cavity with a hollow structure; and An isotope heat source module, including a heat source body disposed within the second accommodating cavity, and a power mechanism connected to the heat source body, the power mechanism being electrically connected to the storage battery, and the power mechanism being configured to drive the heat source body to move along the extending direction of the second accommodating cavity.

2. The building detection system according to claim 1, characterized in that, A heat-insulating layer is provided between the first outer casing and the first accommodating cavity, and the heat-insulating layer at least covers the extending length range of the shape memory alloy body.

3. The building detection system according to claim 2, wherein One end of the first accommodating cavity away from the first power generation material body extends beyond the heat-insulating layer, and the first outer casing has an opening at the end away from the first power generation material body, so that one end of the first accommodating cavity is exposed.

4. The building detection system according to claim 1, characterized in that, The isotope heat source module further includes a limiting member disposed on the heat source body, the power mechanism includes a power contact disposed on the heat source body, the power contact is in contact with the limiting member, and a circuit is formed between the limiting member, the power mechanism and the storage battery. When the relative position between the power contact and the limiting member changes, the on-off of the circuit is controlled.

5. The building detection system according to claim 4, characterized in that, The limiting member includes a first conductive section, an intermediate insulating section and a second conductive section connected in sequence, and the first conductive section and the second conductive section are respectively electrically connected to the storage battery through a double-throw switch; When the power contact contacts the first conductive section, the power mechanism, the first conductive section and the storage battery form a first circuit; when the power contact contacts the second conductive section, the power mechanism, the second conductive section and the storage battery form a second circuit; when the power contact contacts the intermediate insulating section, the first circuit or the second circuit is disconnected; wherein, the double-throw switch controls the conduction of the first circuit or the second circuit.

6. The building detection system according to claim 5, wherein, The first conductive section and the second conductive section respectively extend out of the heat source body. A capacitor is connected in parallel with the power mechanism. When the first conductive section or the second conductive section presses against the inner wall of the second accommodating cavity, and the power contact touches the intermediate insulating section, causing the first circuit or the second circuit to be disconnected, the power mechanism can drive the heat source body and the power contact to continue moving to contact the second conductive section or the first conductive section.

7. The building detection system according to claim 1, wherein, A charging protection module is electrically connected between the storage battery and the thermoelectric battery, and is used for sensing the magnitude, direction and output power of the current.

8. The building detection system according to claim 7, wherein, An electrode inversion module electrically connected to the charging protection module is further provided between the storage battery and the thermoelectric battery, and is used for adjusting the charging direction.

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