Data acquisition system and equipment

Abstract

The utility model provides a data acquisition system and equipment, and relates to the technical field of data acquisition. The data acquisition system comprises a shell and a control circuit arranged in the shell; the control circuit comprises a main control unit, a LoRa communication unit and a data acquisition unit. The main control unit is connected with the LoRa communication unit and the data acquisition unit; the data acquisition unit is used for acquiring environmental parameters in real time; and the main control unit is used for receiving the environment parameters and sending the environment parameters to a server through the LoRa communication unit, so that the environment parameters are pushed to a user based on the server. Wherein the shell comprises a front cover and a rear cover, a first step is arranged or formed at a part of the edge of the front cover, and a second step is arranged or formed at a part of the edge of the rear cover; the first step is matched with the second step so as to achieve the sealing and isolating effect. The utility model provides a data acquisition system and equipment, which can cope with different environmental conditions and improve the accuracy of data acquisition and the stability of communication transmission on the basis.

Description

Technical Field

[0001] The utility model relates to the technical field of data acquisition, and more specifically, to a data acquisition system and device. Background Art

[0002] To adapt to different environments, a high-precision environmental information acquisition device is often required to monitor temperature information, humidity information, etc. in the current device environment in real time.

[0003] To reduce costs, most of the acquisition systems matched with environmental information acquisition devices cannot reach a high-precision level and cannot adapt to different environmental requirements, such as environments like cold storage, refrigerators, incubators, cool storage warehouses, mobile refrigerated trucks, etc. And based on the above considerations of low cost, most of the market uses ordinary lithium batteries as the power supply. When the environmental temperature continues to drop, the lithium battery will continuously decrease its discharge capacity due to the influence of temperature conditions and even stop power supply, thus greatly affecting the accuracy of environmental data. At the same time, when the environmental information acquisition device is set in a high-temperature environment or a low-temperature environment, manually obtaining the acquisition data will greatly increase the labor cost and reduce the timeliness of data acquisition.

[0004] Based on this, there is an urgent need for an environmental information acquisition device that can cope with different environmental conditions and, on this basis, improve the accuracy of data acquisition and the stability of communication transmission. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a data acquisition system and device that can cope with different environmental conditions and, on this basis, improve the accuracy of data acquisition and the stability of communication transmission.

[0006] The utility model provides a technical solution:

[0007] In a first aspect, the utility model provides a data acquisition system, which includes: a housing and a control circuit arranged in the housing; the control circuit includes a main control unit, a LoRa communication unit, and a data acquisition unit; the main control unit is connected to the LoRa communication unit and the data acquisition unit;

[0008] The data acquisition unit is used for obtaining environmental parameters in real time;

[0009] The main control unit is used for receiving the environmental parameters and sending them to the server through the LoRa communication unit, so as to push the environmental parameters to the user based on the server;

[0010] Among them, the housing includes a front cover and a rear cover. A first step is arranged or formed at a part of the edge of the front cover, and a second step is arranged or formed at a part of the edge of the rear cover; the first step and the second step cooperate to achieve the effect of sealing and isolation.

[0011] Optionally, a storage chamber is provided on the front cover, and the storage chamber is used to accommodate the data acquisition unit.

[0012] Optionally, a ventilation hole is formed on the surface of the front cover, and the ventilation hole is provided in the projection area of the storage chamber on the surface of the front cover and is communicated with the storage chamber.

[0013] Optionally, the rear cover at least includes a first bottom plate, a second step is provided or formed at the edge of the first bottom plate, and a first step is provided or formed at the corresponding edge of the front cover and the first bottom plate.

[0014] Optionally, the rear cover further includes a second bottom plate. At least one first recess is provided at the bottom of the first bottom plate, and a number of locking tongues consistent with the number of the first recesses are provided at the top of the second bottom plate. The first recesses are matched with the locking tongues to fix the first bottom plate and the second bottom plate.

[0015] Optionally, at least two second grooves are provided at the bottom of the front cover, and a number of fasteners consistent with the number of the second grooves are provided at the bottom of the second bottom plate. The second grooves are matched with the fasteners.

[0016] Optionally, a sliding track is provided or formed at the edge of the second bottom plate, and a sliding limit track is provided or formed at the corresponding edge of the front cover and the second bottom plate. The sliding track is matched with the sliding limit track.

[0017] Optionally, the height of the inner edge of the first bottom plate is higher than the height of the outer edge of the first bottom plate to provide or form a second step.

[0018] Optionally, the control circuit further includes an interface unit, and the interface unit is connected to the main control unit;

[0019] The interface unit is used to output data instructions to the main control unit;

[0020] The main control unit is used to receive the data instructions and correspondingly adjust the working state of the data acquisition system according to the data instructions.

[0021] In a second aspect, the present invention provides a data acquisition device, including the data acquisition system in the first aspect above.

[0022] The beneficial effects of the data acquisition system and device provided by the present invention are:

[0023] A data acquisition system, which includes a housing and a control circuit disposed in the housing; the control circuit includes a main control unit, a LoRa communication unit, and a data acquisition unit. The main control unit is connected to the LoRa communication unit and the data acquisition unit; the data acquisition unit is used to obtain environmental parameters in real time; the main control unit is used to receive the environmental parameters and send them to the server through the LoRa communication unit, so as to push the environmental parameters to the user based on the server. Wherein, the housing includes a front cover and a rear cover, a first step is provided or formed at a part of the edge of the front cover, and a second step is provided or formed at a part of the edge of the rear cover; the first step and the second step cooperate to achieve the effect of sealing and isolation. The present utility model provides a data acquisition system and device, which can cope with different environmental conditions, and on this basis, improve the accuracy of data acquisition and the stability of communication transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0025] Figure 1 One of the structural schematic diagrams of the control circuit in the present utility model;

[0026] Figure 2 One of the structural schematic diagrams of the front cover in the present utility model;

[0027] Figure 3 Another structural schematic diagram of the control circuit in the present utility model;

[0028] Figure 4 The structural schematic diagram of the data acquisition system in the present utility model;

[0029] Figure 5 Another structural schematic diagram of the control circuit in the present utility model;

[0030] Figure 6 Another structural schematic diagram of the front cover in the present utility model;

[0031] Figure 7 The structural schematic diagram of the rear cover in the present utility model;

[0032] Figure 8 The side view of the connection between the front cover and the rear cover in the prior art;

[0033] Figure 9 The side view of the connection between the front cover and the rear cover in this embodiment;

[0034] Figure 10 It is a schematic structural view of the outer shell in the present utility model;

[0035] Figure 11 It is the third schematic structural view of the front cover in the present utility model.

[0036] Icons: 100 - data acquisition system; 101 - outer shell; 102 - control circuit; 201 - main control unit; 202 - LoRa communication unit; 203 - data acquisition unit; 204 - interface unit; 205 - display unit; 206 - power supply unit; 207 - storage unit; 301 - first fixing member; 302 - second fixing member; 303 - first recess; 304 - locking tongue; 305 - second groove; 306 - fastener; 401 - front cover; 402 - rear cover; 4021 - first bottom plate; 4022 - second bottom plate; 4011 - through hole; 4012 - protective cover; 4013 - hanging hole; 4014 - ventilation hole; 4015 - switch hole; 501 - sliding track; 502 - sliding limit track; 503 - stopper. Specific embodiments

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings herein can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model claimed, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0039] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0040] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0041] In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected to" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0043] As described in the background art, in order to reduce costs, most of the acquisition systems matched with environmental information acquisition devices cannot reach a high-precision level, nor can they adapt to different environmental requirements. Moreover, when using ordinary lithium batteries as the power supply, if the environmental temperature continues to drop or the environmental information acquisition device continuously operates in a low-temperature environment, it will greatly affect the accuracy of environmental data. At the same time, when the environmental information acquisition device is set in a high-temperature environment or a low-temperature environment, manually obtaining the acquisition data will greatly increase the labor cost and reduce the timeliness of data acquisition.

[0044] Based on this, the present utility model provides a data acquisition system and device, which can cope with different environmental conditions and, on this basis, improve the accuracy of data acquisition and the stability of communication transmission.

[0045] Embodiment

[0046] In a first aspect, please refer to Figure 1 , the present utility model provides a data acquisition system 100, and the data acquisition system 100 includes: a housing 101 and a control circuit 102 disposed in the housing; the control circuit 102 includes a main control unit 201, a LoRa communication unit 202, and a data acquisition unit 203; the main control unit 201 is connected to the LoRa communication unit 202 and the data acquisition unit 203. In this embodiment, the housing includes a front cover and a rear cover. Please refer to Figure 2In this embodiment, the data acquisition system 100 can fix the control circuit on the front cover 401 through at least two first fixing members 301. The front cover 401 and the back cover are fixed by correspondingly arranged at least one second fixing member 302. In a possible implementation, the front cover and the back cover are fixed by four second fixing members, and the second fixing members are symmetrically distributed at both ends of the front cover and / or the back cover. Please continue to refer to Figure 2 In a possible implementation, when a screw hole and a matching screw are used as the second fixing member, at least four screw holes can be provided on the front cover, and each screw hole is symmetrically distributed at the four corners of the front cover 401, so as to fix the rear cover to the front cover by screws. Figure 2 In this embodiment, when a screw hole and a matching screw are used as the first fixing member, two symmetrically arranged screw holes can be provided on the front cover to fix the control circuit.

[0047] In this embodiment, the data acquisition unit is used to obtain environmental parameters in real time; the main control unit is used to receive and send the environmental parameters to the server through the LoRa communication unit, so as to solve the problem that the traditional design scheme cannot take into account the distance, anti-interference and power consumption at the same time based on the LoRa communication unit, and realize long-distance data reception and transmission.

[0048] In one possible implementation method, the data acquisition unit may use a digital temperature and humidity sensor, such as an SHT30 chip, wherein the temperature measurement range satisfies: -30 to +70, and the corresponding temperature indication error satisfies: ±0.2. The humidity measurement range satisfies: 0 to 100% RH, and the corresponding humidity indication error is: ±2% RH. The main control unit may use an ARM processor, such as a 32-bit ARM processor HC32L136. The data acquisition unit is connected to the main control unit, and according to the corresponding instructions output by the main control unit, it implements contents such as the timed collection of environmental temperature and humidity data.

[0049] Among them, please refer to Figure 3 In order to display the ambient temperature and humidity data, the control circuit 102 further includes a display unit 205, which may be a display screen. In one possible implementation, the display unit may be a 1.3-inch 16-pin broken-code screen, which is connected to the main control unit and is used to display the temperature and humidity data and / or the real-time clock and / or the battery power and / or the wireless communication signal in real time. Figure 3 Based on Figure 4 A through hole may be correspondingly provided on the front cover 401 to expose the display unit, which specifically displays information such as corresponding temperature and humidity values.

[0050] In this embodiment, please continue to refer to Figure 3, the control circuit 102 further includes an interface unit 204, and the interface unit 204 is connected to the main control unit 201; the interface unit is used to output data instructions to the main control unit; the main control unit is used to receive the data instructions and correspondingly adjust the working state of the data acquisition system according to the data instructions. In a possible implementation manner, the interface unit can adopt a self - restoring push - button switch. For example, one end of the self - restoring push - button switch is connected to the first port of the main control unit, and the other end can be connected to the second port of the main control unit through a capacitor, so that the self - restoring push - button switch is connected in parallel to the corresponding port of the main control unit, and the radio frequency mode, wireless module of the data acquisition system, and / or the power - on and power - off operations can be switched through different button - pressing times or different button - pressing sequences of the self - restoring push - button switch.

[0051] Please continue to refer to Figure 2 , a switch hole 4015 can be provided on any side of the front cover 401 to accommodate the above - mentioned self - restoring push - button switch, so as to correspondingly realize the working mode of the interface unit through the self - restoring push - button switch.

[0052] Based on the LoRa communication unit and the interface unit, the remote power - on and power - off operation can also be realized in this embodiment. For example, the data monitoring host remotely controls the temperature and humidity data acquisition device to start or stop recording. This embodiment does not limit the specific implementation method for the interface unit to output data instructions to the main control unit.

[0053] In this embodiment, please refer to Figure 5 , the control circuit 102 further includes a power supply unit 206. The power supply unit 206 is connected to each unit below the control circuit 102 through the main control unit 201, for example, the above - mentioned LoRa communication unit 202, data acquisition unit 203, interface unit 204, and display unit 205, etc., to supply power to each unit below the control circuit 102. To realize the integration of the data acquisition system, in a possible implementation manner, the power supply unit can adopt a lithium - battery component. The lithium - battery component can include a disposable 3.6V lithium battery and an SPC capacitor. Among them, the power supply unit can pass through a linear voltage regulator, for example, the ME6230C30M5G chip, to stabilize the output voltage to 3.0V and then supply power to the data acquisition system. Based on this, the lithium - battery component in this embodiment can ensure that the data acquisition system can be continuously used at a low temperature of minus 30 degrees Celsius for no less than 365 days to ensure the stability of communication transmission.

[0054] In this embodiment, please continue to refer to Figure 5 , to increase the storage capacity of the data acquisition system, the control circuit 102 further includes a storage unit 207. The storage unit 207 is connected to the main control unit 201 to store the collected temperature and humidity data. In a possible implementation manner, the storage unit can select a serial peripheral interface flash memory, for example, the BY25Q80AW chip, which can store at least 64000 groups of temperature and humidity data.

[0055] Based on the above embodiments, the present utility model further provides an operation method for a data acquisition system. For example, when the data acquisition system is in the power-on state, if the LoRa communication unit shows that the timeout for currently logging in to the intelligent gateway is 0, that is, in the radio frequency state, the data acquisition system can consume low power and work in a long standby state. Another example is that when the data acquisition system is in the power-off state, if the LoRa communication unit shows that the timeout for currently logging in to the intelligent gateway is 30 minutes, the radio frequency mode is correspondingly turned off, and in this state, the power consumption of the data acquisition system is very low. The radio frequency can also be turned on by clicking the side power-on / off button (the above interface unit) to log in to the intelligent gateway. When the LoRa communication unit shows successful login to the intelligent gateway, the status of the temperature and humidity data acquisition device is synchronized with the data monitoring host.

[0056] In summary, the present utility model provides a data acquisition system that can use a 32-bit single-chip microcomputer with ultra-low power consumption and wide voltage as the main control unit, connect a high-precision temperature and humidity acquisition module, a low-temperature resistant and long-endurance power supply module, and a large-capacity storage module to accurately and timely detect environmental temperature and humidity data. The environmental parameters can be sent to the server through the LoRa communication unit, so that the environmental parameters can be pushed to users based on the server, and the centralized storage of temperature and humidity data can be realized by using this structure, and the unified analysis of data can be realized, which can greatly reduce the labor cost and time cost of data acquisition and data processing.

[0057] In this embodiment, the housing includes a front cover and a rear cover. A first step is provided or formed at a part of the edge of the front cover, and a second step is provided or formed at a part of the edge of the rear cover; the first step and the second step cooperate to achieve the effect of sealing and isolation. Among them, the first step and / or the second step describe a part of the edge of the front cover and / or the rear cover. Please refer to Figure 6 , taking the front cover 401 as an example, the height of the outer edge of the front cover 401 can be greater than the height of the inner edge of the front cover 401. At this time, a height difference is formed between the outer edge and the inner edge of the front cover 401, constituting the first step. Correspondingly, the height of the outer edge of the rear cover can be less than the height of the inner edge of the rear cover. At this time, a height difference is formed between the outer edge and the inner edge of the rear cover, constituting the second step.

[0058] In a possible implementation manner, please refer to Figure 7 , in this embodiment, the rear cover 402 includes a first bottom plate 4021 and a second bottom plate 4022. The second step is provided or formed at the edge of the first bottom plate 4021, and the first step is provided or formed at the corresponding edge of the front cover 401 and the first bottom plate 4021. In this embodiment, when the height of the outer edge of the first bottom plate 4021 is less than the height of the inner edge, at the corresponding connection part of the front cover 401 and the first bottom plate 4021, the height of the outer edge is greater than the height of the inner edge.

[0059] Please refer to Figure 8 and Figure 9 , wherein Figure 8 is a side view of the connection between the front cover and the rear cover in the prior art, Figure 9 is a side view of the connection between the front cover and the rear cover in this embodiment. From the above Figure 8 and Figure 9 , it can be seen that in this embodiment, the front cover and the rear cover are designed with a concave front (at some edges) and a convex rear (at other edges), so that the seam between the front cover and the rear cover is matched by a misaligned microchannel, increasing the connection surface between the front cover and the rear cover, and thus achieving a sealing and isolation effect.

[0060] In this embodiment, please continue to refer to Figure 7 , at least one first recess 303 is provided at the bottom of the first bottom plate 4021, and a latch 304 with the same number as the first recess 303 is provided at the top of the second bottom plate 4022. The first recess 303 is matched with the latch 304, and thus the first bottom plate and the second bottom plate are fixed according to the first recess and the matching latch.

[0061] In this embodiment, to achieve the sliding installation of the second bottom plate 4022, please refer to Figure 10 , a schematic structural diagram of a housing 101 is provided in this embodiment. Among them, a sliding track 501 is provided or formed at the edge of the second bottom plate 4022, and a sliding limit track 502 is correspondingly provided or formed at the edge of the front cover 401 corresponding to the second bottom plate 4022. The sliding track 501 is matched with the sliding limit track 502 to limit and lock the second bottom plate through the sliding limit track. In another implementable manner, when a sliding limit track is correspondingly provided or formed at the edge of the front cover corresponding to the second bottom plate, a limiter 503 can also be provided at the top of the second bottom plate, and correspondingly, a hole is provided at the bottom of the front cover to achieve the installation limit and fixation of the second bottom plate.

[0062] Please continue to refer to Figure 10 , at least two second grooves 305 are provided at the bottom of the front cover 401, and a fastener 306 with the same number as the second grooves 305 is provided at the bottom of the second bottom plate 4022. The second grooves 305 are matched with the fasteners 306 to achieve the installation limit and fixation of the second bottom plate.

[0063] In this embodiment, please continue to refer to Figure 2, a storage chamber is further provided on the front cover 401, and the storage chamber is used to accommodate the data acquisition unit. Among them, to realize the internal and external air circulation so that the data acquisition unit, such as the temperature and humidity sensor, can accurately detect the actual values corresponding to the temperature and humidity of the current environment, a ventilation hole 4014 can be opened on the surface of the front cover 401. Among them, the ventilation hole 4014 is arranged in the projection area of the storage chamber on the surface of the front cover 401 and is communicated with the storage chamber to enable the storage chamber to circulate and ventilate with the external environment. In a possible implementation manner, please continue to refer to Figure 2 , when the front cover and the rear cover are fixed by 4 second fixing members 302, the storage chamber can be arranged between any two symmetrically arranged second fixing members. For example, between the two second fixing members corresponding to the top of the front cover.

[0064] Among them, please refer to Figure 11 , when the interface unit 204 further includes a USB interface module, a through hole 4011 is further provided on any side edge of the front cover 401 to accommodate the USB interface. To prevent the USB interface from being affected by the environment, a protective cover 4012, such as a silica gel protective cover, can be provided at the through hole 4011 to further seal the interface unit. In this embodiment, when the USB interface module is connected to the temperature and humidity data acquisition device, for example, a PC computer, it can automatically identify the temperature and humidity data acquisition device and perform parameter setting and export of stored data.

[0065] Please continue to refer to Figure 2 , to improve the convenience of the data acquisition system, a hanging hole 4013 can be provided at any end of any side of the front cover 401, and then a hook can be installed on the hanging hole 4013. In a possible implementation manner, a protruding hanging hole can be provided at the lower right corner of the front cover to facilitate the installation of the data acquisition system.

[0066] In summary, in this embodiment, a data acquisition system includes a housing and a control circuit provided in the housing; the control circuit includes a main control unit, a LoRa communication unit, and a data acquisition unit. The main control unit is connected to the LoRa communication unit and the data acquisition unit; the data acquisition unit is used to obtain environmental parameters in real time; the main control unit is used to receive and send the environmental parameters to the server through the LoRa communication unit to push the environmental parameters to the user based on the server. Among them, the housing includes a front cover and a rear cover, a first step is provided or formed at a part of the edge of the front cover, and a second step is provided or formed at a part of the edge of the rear cover; the first step and the second step cooperate to achieve the effect of sealing and isolation. The present invention provides a data acquisition system that can cope with different environmental conditions and, on this basis, improve the accuracy of data acquisition and the stability of communication transmission.

[0067] In a second aspect, the present invention provides a data acquisition device, including the data acquisition system of the first aspect above.

[0068] Based on the above data acquisition system, this embodiment further provides a data acquisition device. This data acquisition device includes all the technical means and all the technical effects of the data acquisition system in the first aspect above. That is, the data acquisition device in this embodiment can cope with different environmental conditions, and on this basis, improve the accuracy of data acquisition and the stability of communication transmission.

[0069] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A data acquisition system, characterized in that, The data acquisition system includes: a housing and a control circuit disposed in the housing; the control circuit includes a main control unit, a LoRa communication unit, and a data acquisition unit; the main control unit is connected to the LoRa communication unit and the data acquisition unit; The data acquisition unit is configured to obtain environmental parameters in real time; The main control unit is configured to receive the environmental parameters and send them to the server through the LoRa communication unit, so as to push the environmental parameters to the user based on the server; Wherein, the housing includes a front cover and a rear cover, a first step is provided or formed at a partial edge of the front cover, and a second step is provided or formed at a partial edge of the rear cover; the first step cooperates with the second step to achieve a sealing and isolation effect.

2. The data acquisition system according to claim 1, wherein, The front cover is provided with a storage chamber for accommodating the data acquisition unit.

3. The data acquisition system according to claim 2, wherein A ventilation hole is formed on the surface of the front cover, wherein the ventilation hole is provided in the projection area of the storage chamber on the surface of the front cover and is communicated with the storage chamber.

4. The data acquisition system according to claim 1, characterized in that, The rear cover at least includes a first bottom plate, the second step is provided or formed at the edge of the first bottom plate, and the first step is provided or formed at the corresponding edge of the front cover and the first bottom plate.

5. The data acquisition system according to claim 4, characterized in that, The rear cover further includes a second bottom plate, at least one first recess is provided at the bottom of the first bottom plate, and a latch with the same number as the first recess is provided at the top of the second bottom plate, and the first recess is matched with the latch to fix the first bottom plate and the second bottom plate.

6. The data acquisition system according to claim 5, wherein At least two second grooves are provided at the bottom of the front cover, and fasteners with the same number as the second grooves are provided at the bottom of the second bottom plate, and the second grooves are matched with the fasteners.

7. The data acquisition system according to claim 5, wherein A sliding track is provided or formed at the edge of the second bottom plate, and a sliding limit track is provided or formed at the corresponding edge of the front cover and the second bottom plate, and the sliding track is matched with the sliding limit track.

8. The data acquisition system according to claim 4, characterized in that The height of the inner edge of the first bottom plate is higher than the height of the outer edge of the first bottom plate to set or form a second step.

9. The data acquisition system according to claim 1, wherein The control circuit further includes an interface unit, and the interface unit is connected to the main control unit; The interface unit is configured to output a data instruction to the main control unit; The main control unit is configured to receive the data instruction and correspondingly adjust the working state of the data acquisition system according to the data instruction.

10. A data acquisition device, characterized in that, Including the data acquisition system according to any one of claims 1 to 9.

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