Data acquisition instrument capable of replacing battery without power failure

Abstract

The utility model discloses a data acquisition instrument capable of replacing batteries without power interruption, and relates to the technical field of data acquisition devices. The battery interface, the main control chip, the power supply circuit and the built-in battery are connected to the shell, and the three-axis acceleration sensor, the toppling sensor and the water immersion sensor are electrically connected to the main control chip. The power supply circuit is configured to switch to the built-in battery without power off when the battery interface and the external battery are disconnected. The power supply circuit comprises a field effect transistor. And the first output end of the built-in battery is grounded. The second output end of the built-in battery is electrically connected with the source electrode of the field effect transistor through the first resistor. The first output end of the battery interface is grounded. The second output end of the battery interface is electrically connected to the first end of the second resistor. The second end of the second resistor is electrically connected to the anode of the first diode. The cathode of the diode is electrically connected with the drain electrode of the field effect transistor. And the drain electrode of the field effect transistor is electrically connected with the power supply input end of the main control chip. The grid electrode of the field effect transistor is electrically connected with the anode of the diode.

Description

Technical Field

[0001] The utility model relates to the technical field of data acquisition devices, in particular to a data acquisition instrument capable of replacing batteries without power failure. Background Art

[0002] With the continuous development of industrial automation and informatization, data acquisition instruments (hereinafter referred to as data acquisition instruments) are increasingly widely used in various fields. A data acquisition instrument is a device used to monitor and record data in real time. It can convert analog signals collected by sensors into digital signals and transmit the data to a monitoring center or data storage device through a communication interface. Data acquisition instruments are widely used in power monitoring, environmental monitoring, industrial production, medical equipment, transportation and other fields, providing important support for improving production efficiency, ensuring equipment operation safety, and promoting scientific research.

[0003] However, existing data acquisition instruments have certain limitations in actual use. Most data acquisition instruments are powered by a single battery. This design simplifies the power management of the equipment to a certain extent, but it also brings some problems. The most prominent problem is that the equipment will be temporarily powered off when replacing the battery. Since data acquisition instruments usually need to collect and record data continuously and uninterruptedly, power outages during battery replacement will cause data loss during the battery replacement period, which not only affects the integrity and continuity of the data, but may also have an adverse impact on key links such as production monitoring and fault diagnosis.

[0004] The integrity and accuracy of data are crucial to the effective operation of data acquisition instruments. In some key application scenarios, such as real-time monitoring of power systems and continuous monitoring of environmental quality, data loss may lead to the omission of important information, thus affecting the accuracy and timeliness of decision-making. In addition, data loss may also increase the difficulty of subsequent data processing and analysis, and increase additional workload and costs.

[0005] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content

[0006] The utility model provides a data acquisition instrument capable of replacing batteries without power failure, aiming to improve at least one of the above technical problems.

[0007] In order to solve the above technical problems, the utility model provides a data acquisition instrument capable of replacing batteries without power outage, which comprises a shell, a battery interface, a main control chip, a power supply circuit, a built-in battery, a three-axis acceleration sensor, a tipping sensor and a water immersion sensor.

[0008] The output ends of the three-axis acceleration sensor, the tipping sensor and the water immersion sensor are electrically connected to the signal acquisition port of the main control chip respectively.

[0009] The battery interface, the main control chip, the power supply circuit and the built-in battery are joined to the housing. The power supply circuit is electrically connected to the power input terminal of the main control chip. The built-in battery is electrically connected to the first power input terminal of the power supply circuit. The battery interface is electrically connected to the second power input terminal of the power supply circuit. The battery interface is used for detachable electrical connection with an external battery. The power supply circuit is configured to switch to the built-in battery for power supply without power failure when the battery interface and the external battery are disconnected.

[0010] The power supply circuit includes a field effect transistor. The first output terminal of the built-in battery is grounded. The second output terminal of the built-in battery is electrically connected to the source of the field effect transistor through a first resistor. The first output terminal of the battery interface is grounded. The second output terminal of the battery interface is electrically connected to the first end of the second resistor. The second end of the second resistor is electrically connected to the anode of the first diode. The cathode of the diode is electrically connected to the drain of the field effect transistor. The drain of the field effect transistor is electrically connected to the power input terminal of the main control chip. The gate of the field effect transistor is electrically connected to the anode of the diode.

[0011] In an optional embodiment, the second output terminal of the battery interface is electrically connected to the positive electrode of the first electrolytic capacitor. The negative electrode of the first electrolytic capacitor is grounded. The gate of the field effect transistor is grounded through a third resistor. The second end of the built-in battery is grounded through the first capacitor and the second capacitor respectively. The capacity of the first capacitor is greater than that of the second capacitor.

[0012] In an optional embodiment, the anode of the diode is electrically connected to the anode of the second electrolytic capacitor. The cathode of the second electrolytic capacitor is grounded. The anode of the diode is also electrically connected to the first end of the fourth resistor and the third capacitor. The second ends of the fourth resistor and the third capacitor are grounded.

[0013] In an optional embodiment, the data acquisition instrument also includes a power interface coupled to the housing. The power supply circuit also includes a MIC29302WU regulator electrically connected to the power interface. The enable pin and the output voltage pin of the MIC29302WU regulator are both electrically connected to the power interface and are both grounded through a fourth capacitor. The ground pin of the MIC29302WU regulator is grounded. The output voltage pin of the MIC29302WU regulator is electrically connected to the anode of the first diode and the first end of the fifth resistor, respectively. The second end of the fifth resistor is electrically connected to the first end of the sixth resistor. The second end of the sixth resistor is grounded. The adjustment pin of the MIC29302WU regulator is electrically connected to the first end of the sixth resistor.

[0014] In an optional embodiment, all ground pins of the three-axis acceleration sensor are grounded. The interrupt output pin of the three-axis acceleration sensor is electrically connected to the first signal acquisition port of the main control chip through the tenth resistor. The power supply voltage pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit, and the power supply voltage pin is grounded through the fifth capacitor. The chip select control pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit through the seventh resistor. The unconnected pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit through the eighth resistor. The clock pin of the three-axis acceleration sensor is electrically connected to the second signal acquisition port of the main control chip, and is electrically connected to the output end of the power supply circuit through the ninth resistor. The data output pin of the three-axis acceleration sensor is grounded through the eleventh resistor. The data pin of the three-axis acceleration sensor is electrically connected to the third signal acquisition port of the main control chip and the first end of the twelfth resistor. The power supply voltage pin of the three-axis acceleration sensor, the second end of the twelfth resistor and the output end of the power supply circuit are all electrically connected to the first end of the sixth capacitor. The second end of the sixth capacitor is grounded.

[0015] In an optional embodiment, the power input end of the tipping sensor is electrically connected to the output end of the power supply circuit through a thirteenth resistor. The signal output end of the tipping sensor is electrically connected to the fourth signal acquisition port of the main control chip. The signal output end of the tipping sensor is grounded through a fourteenth resistor.

[0016] In an optional embodiment, the signal output end of the water immersion sensor is electrically connected to the fifth signal acquisition port of the main control chip.

[0017] In an optional embodiment, the data acquisition instrument further includes an RS485 interface and a wireless communication module. The RS485 interface is coupled to the housing and electrically connected to the signal acquisition port of the main control chip. The wireless communication module is electrically connected to the signal acquisition port of the main control chip. The wireless communication module is a Bluetooth / WIFI / 2G / 3G / 4G / 5G module.

[0018] In an optional embodiment, the three-axis acceleration sensor is a SC7A22HTR three-axis micro-mechanical digital accelerometer sensor chip. The main control chip is a STM32L151RET6 microcontroller. The tipping sensor is a SW-200D tilt sensor. The wireless communication module is an EC800M-CAT1 wireless communication module.

[0019] In an optional embodiment, the data acquisition instrument further includes an external battery. The external battery is detachably electrically connected to the battery interface.

[0020] By adopting the above technical solution, the utility model can achieve the following technical effects:

[0021] The data acquisition instrument of the embodiment of the utility model is provided with a power supply circuit of a field effect tube, which can automatically switch to the internal battery for power supply when the external battery is disconnected, thereby avoiding power outage when replacing the battery, ensuring that the collected data is continuous and uninterrupted, and providing a good foundation for subsequent data analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a simplified diagram of the structure of the data acquisition instrument.

[0024] Figure 2 This is a circuit connection diagram of the data logger.

[0025] Figure 3 This is the circuit connection diagram of the main control chip.

[0026] Figure 4 It is the circuit connection diagram of the power supply circuit.

[0027] Figure 5 This is the circuit connection diagram of the three-axis sensor.

[0028] Figure 6 This is the circuit connection diagram of the tipping sensor.

[0029] Numbers in the figure: R490-first resistor, R482-second resistor, R481-third resistor, R491-fourth resistor, R479-fifth resistor, R480-sixth resistor, D4-diode, C355-first electrolytic capacitor, C380-second electrolytic capacitor, C377-first capacitor, C388-second capacitor, C359-third capacitor, C358-fourth capacitor, Q24-field effect transistor, S-source, D-drain, G-gate. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0031] Depend on Figures 1 to 6 As shown, an embodiment of the utility model provides a data acquisition instrument capable of replacing batteries without power outage, which includes a shell, a battery interface, a main control chip, a power supply circuit, a built-in battery, a three-axis acceleration sensor, a tipping sensor and a water immersion sensor.

[0032] The output ends of the three-axis acceleration sensor, the tipping sensor and the water immersion sensor are respectively electrically connected to the signal acquisition port of the main control chip. Preferably, the main control chip is an STM32L151RET6 microcontroller. The three-axis acceleration sensor is an SC7A22HTR three-axis micromechanical digital accelerometer sensor chip. The tipping sensor SW-200D tilt sensor. Among them, the three-axis acceleration sensor and the tipping sensor are both installed inside the device through a circuit board. The water immersion sensor can be connected to the housing.

[0033] The battery interface, the main control chip, the power supply circuit and the built-in battery are joined to the housing. The power supply circuit is electrically connected to the power input terminal of the main control chip. The built-in battery is electrically connected to the first power input terminal of the power supply circuit. The battery interface is electrically connected to the second power input terminal of the power supply circuit. The battery interface is used for detachable electrical connection with an external battery. The power supply circuit is configured to switch to the built-in battery for power supply without power failure when the battery interface and the external battery are disconnected.

[0034] The power supply circuit includes a field effect transistor Q24. The field effect transistor Q24 is AO3401, and its three pins are respectively named source S, drain D and gate G. The first output terminal of the built-in battery is grounded. The second output terminal of the built-in battery is electrically connected to the source S of the field effect transistor Q24 through the first resistor R490. The first output terminal of the battery interface is grounded. The second output terminal of the battery interface is electrically connected to the first end of the second resistor R482. The second end of the second resistor R482 is electrically connected to the anode of the first diode D4. The cathode of the diode D4 is electrically connected to the drain D of the field effect transistor Q24. The drain D of the field effect transistor Q24 is electrically connected to the power input terminal of the main control chip. The gate G of the field effect transistor Q24 is electrically connected to the anode of the diode D4.

[0035] Preferably, Figure 4 As shown, the second output end of the battery interface is electrically connected to the positive electrode of the first electrolytic capacitor C355. The negative electrode of the first electrolytic capacitor C355 is grounded. The gate G of the field effect transistor Q24 is grounded through the third resistor R481. The second end of the built-in battery is grounded through the first capacitor C377 and the second capacitor C388 respectively. Among them, the capacity of the first capacitor C377 is greater than that of the second capacitor C388. More preferably, the positive electrode of the diode D4 is electrically connected to the positive electrode of the second electrolytic capacitor C380. The negative electrode of the second electrolytic capacitor C380 is grounded. The positive electrode of the diode D4 is also electrically connected to the first end of the fourth resistor R491 and the third capacitor C359. The second ends of the fourth resistor R491 and the third capacitor C359 are grounded.

[0036] The embodiment of the utility model adopts battery operation, and external batteries are used preferentially. When the external batteries are replaced, the internal batteries are automatically switched to ensure uninterrupted operation of the equipment; the external batteries charge the internal batteries to ensure that the internal batteries have sufficient power, which can ensure uninterrupted operation under long life!

[0037] Specifically, when the external battery is powered, the external battery is electrically connected to the output end of the power supply circuit through the second resistor R482 and the first diode D4. The gate G and source S voltages of the field effect tube Q24 tend to be equal, and the drain D and source S of the field effect tube Q24 are not conducting. When the external battery is disconnected, the gate G0 level of the field effect tube Q24 (external battery 0 level). The gate G voltage of the field effect tube Q24 is less than the source S voltage, and the drain D and source S of the field effect tube Q24 are conducting, thereby powering the device through the built-in battery.

[0038] When replacing the battery of a single-battery powered data acquisition instrument, the battery needs to be taken out, which causes the device to lose power and fail to work, and then leads to data loss during the battery replacement. The data acquisition instrument of the utility model embodiment is provided with a power supply circuit of the field effect transistor Q24, which can automatically switch to the internal battery power supply when the external battery is disconnected, avoiding power outage when replacing the battery, solving the problem of data loss when replacing the battery, and ensuring that the collected data is continuous and uninterrupted, providing a good foundation for subsequent data analysis.

[0039] In addition, the traditional data acquisition instrument cannot monitor the device installation status, resulting in the inability to timely detect changes in the device installation scene or abnormal device status (installation environment displacement caused by typhoons, flooding caused by heavy rains, accidental touch during manual maintenance, etc.), resulting in inaccurate data collected by the device. The data acquisition instrument of the embodiment of the utility model can detect and report changes in the device or environmental status in a timely manner, and multiple insurances ensure the reliability of the device.

[0040] like Figure 4 As shown, based on the above embodiment, in an optional embodiment of the utility model, the data acquisition instrument also includes a power interface connected to the shell. The power supply circuit also includes a MIC29302WU regulator electrically connected to the power interface. The enable pin and the output voltage pin of the MIC29302WU regulator are both electrically connected to the power interface, and are both grounded through the fourth capacitor C358. The ground pin of the MIC29302WU regulator is grounded. The output voltage pin of the MIC29302WU regulator is electrically connected to the anode of the first diode D4 and the first end of the fifth resistor R479 respectively. The second end of the fifth resistor R479 is electrically connected to the first end of the sixth resistor R480. The second end of the sixth resistor R480 is grounded. The adjustment pin of the MIC29302WU regulator is electrically connected to the first end of the sixth resistor R480.

[0041] Specifically, by setting a voltage stabilizer, the power can be directly supplied by an external power supply, providing a more abundant power supply mode for the data acquisition instrument, which has a very good practical significance. Moreover, when the power is supplied by an external power supply, it can be further electrically connected to an external battery and a built-in battery through a charging circuit, so that the two batteries can be charged respectively, which has a very good practical significance.

[0042] like Figure 5As shown, on the basis of the above embodiment, in an optional embodiment of the utility model, all ground pins of the three-axis acceleration sensor are grounded. The interrupt output pin of the three-axis acceleration sensor is electrically connected to the first signal acquisition port of the main control chip through the tenth resistor. The power supply voltage pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit, and the power supply voltage pin is grounded through the fifth capacitor. The chip select control pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit through the seventh resistor. The unconnected pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit through the eighth resistor. The clock pin of the three-axis acceleration sensor is electrically connected to the second signal acquisition port of the main control chip, and is electrically connected to the output end of the power supply circuit through the ninth resistor. The data output pin of the three-axis acceleration sensor is grounded through the eleventh resistor. The data pin of the three-axis acceleration sensor is electrically connected to the third signal acquisition port of the main control chip and the first end of the twelfth resistor. The power supply voltage pin of the three-axis acceleration sensor, the second end of the twelfth resistor and the output end of the power supply circuit are all electrically connected to the first end of the sixth capacitor. The second end of the sixth capacitor is grounded.

[0043] like Figure 6 As shown, on the basis of the above embodiments, in an optional embodiment of the utility model, the power input end of the tipping sensor is electrically connected to the output end of the power supply circuit through a thirteenth resistor. The signal output end of the tipping sensor is electrically connected to the fourth signal acquisition port of the main control chip. The signal output end of the tipping sensor is grounded through a fourteenth resistor. Preferably, the electrical connection method of the water immersion sensor is the same as that of the tipping sensor. The signal output end of the water immersion sensor is electrically connected to the fifth signal acquisition port of the main control chip.

[0044] Specifically, the three-axis acceleration chip can monitor the installation angle of the device. The tipping sensor can monitor whether the device has fallen over. The water immersion sensor can monitor whether the device is immersed / flooded in water. By detecting the status of the data acquisition instrument through multiple sensors, abnormalities in the installation status can be discovered in time to ensure the effectiveness of data collection.

[0045] like Figure 2 As shown, based on the above embodiment, in an optional embodiment of the utility model, the data acquisition instrument also includes an RS485 interface and a wireless communication module. The RS485 interface is engaged with the housing and electrically connected to the signal acquisition port of the main control chip. The wireless communication module is electrically connected to the signal acquisition port of the main control chip. Among them, the wireless communication module is a Bluetooth / WIFI / 2G / 3G / 4G or 5G module. Preferably, the wireless communication module is an EC800M-CAT1 wireless communication module.

[0046] Preferably, the data acquisition instrument further includes an external battery. The external battery is detachably electrically connected to the battery interface. Specifically, in other embodiments, the external battery can be other existing general-purpose batteries, and does not need to be bundled with the data acquisition instrument for sale.

[0047] The data acquisition instrument of the embodiment of the utility model adopts an external battery and an internal battery for dual battery power supply, aiming to solve the problem of the device not working during the device battery replacement in the prior art, so as to ensure that the device can work uninterruptedly. In addition, the device reliability is further improved by simultaneously monitoring the device status through multiple sensors such as a three-axis acceleration chip, a tipping sensor, and a water immersion sensor.

[0048] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A data acquisition instrument capable of replacing batteries without power outage, characterized in that: It includes a housing, a battery interface, a main control chip, a power supply circuit, a built-in battery, a three-axis acceleration sensor, a tipping sensor and a water immersion sensor; The output ends of the three-axis acceleration sensor, the tipping sensor and the water immersion sensor are electrically connected to the signal acquisition port of the main control chip respectively; The battery interface, the main control chip, the power supply circuit and the built-in battery are joined to the housing; the power supply circuit is electrically connected to the power input terminal of the main control chip; the built-in battery is electrically connected to the first power input terminal of the power supply circuit; the battery interface is electrically connected to the second power input terminal of the power supply circuit; the battery interface is used for detachable electrical connection with an external battery; the power supply circuit is configured to be able to switch to the built-in battery for power supply without power failure when the battery interface and the external battery are disconnected; The power supply circuit includes a field effect transistor; the first output end of the built-in battery is grounded; the second output end of the built-in battery is electrically connected to the source of the field effect transistor through a first resistor; the first output end of the battery interface is grounded; the second output end of the battery interface is electrically connected to the first end of the second resistor; the second end of the second resistor is electrically connected to the anode of the first diode; the cathode of the diode is electrically connected to the drain of the field effect transistor; the drain of the field effect transistor is electrically connected to the power input end of the main control chip; and the gate of the field effect transistor is electrically connected to the anode of the diode.

2. According to claim 1, a data acquisition instrument capable of replacing batteries without power outage is characterized in that , the second output end of the battery interface is electrically connected to the positive electrode of the first electrolytic capacitor; the negative electrode of the first electrolytic capacitor is grounded; The gate of the field effect tube is grounded through a third resistor; The second end of the built-in battery is grounded through a first capacitor and a second capacitor respectively; wherein the capacity of the first capacitor is greater than that of the second capacitor.

3. A data acquisition instrument capable of replacing batteries without power outage according to claim 1, characterized in that , the positive electrode of the diode is electrically connected to the positive electrode of the second electrolytic capacitor; the negative electrode of the second electrolytic capacitor is grounded; The anode of the diode is also electrically connected to the first end of the fourth resistor and the third capacitor; the second ends of the fourth resistor and the third capacitor are grounded.

4. A data acquisition instrument capable of replacing batteries without power outage according to claim 3, characterized in that , the data acquisition instrument also includes a power interface connected to the housing; the power supply circuit also includes a MIC29302WU regulator electrically connected to the power interface; The enable pin and the output voltage pin of the MIC29302WU voltage regulator are both electrically connected to the power interface and are both grounded through the fourth capacitor; the ground pin of the MIC29302WU voltage regulator is grounded; the output voltage pin of the MIC29302WU voltage regulator is electrically connected to the anode of the first diode and the first end of the fifth resistor respectively; the second end of the fifth resistor is electrically connected to the first end of the sixth resistor; the second end of the sixth resistor is grounded; the adjustment pin of the MIC29302WU voltage regulator is electrically connected to the first end of the sixth resistor.

5. According to claim 1, a data acquisition instrument capable of replacing batteries without power outage is characterized in that , all ground pins of the three-axis acceleration sensor are grounded; The interrupt output pin of the three-axis acceleration sensor is electrically connected to the first signal acquisition port of the main control chip through a tenth resistor; The power supply voltage pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit, and the power supply voltage pin is grounded through a fifth capacitor; The chip selection control pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit through a seventh resistor; The unconnected pin of the three-axis acceleration sensor is electrically connected to the output end of the power supply circuit through an eighth resistor; The clock pin of the three-axis acceleration sensor is electrically connected to the second signal acquisition port of the main control chip, and is electrically connected to the output end of the power supply circuit through a ninth resistor; The data output pin of the three-axis acceleration sensor is grounded through an eleventh resistor; The data pin of the three-axis acceleration sensor is electrically connected to the third signal acquisition port of the main control chip and the first end of the twelfth resistor; The power supply voltage pin of the three-axis acceleration sensor, the second end of the twelfth resistor and the output end of the power supply circuit are all electrically connected to the first end of the sixth capacitor; the second end of the sixth capacitor is grounded.

6. A data acquisition instrument capable of replacing batteries without power outage according to claim 1, characterized in that , the power input end of the tipping sensor is electrically connected to the output end of the power supply circuit through a thirteenth resistor; The signal output end of the tipping sensor is electrically connected to the fourth signal acquisition port of the main control chip; the signal output end of the tipping sensor is grounded through a fourteenth resistor.

7. A data acquisition instrument capable of replacing batteries without power outage according to claim 1, characterized in that , the signal output end of the water immersion sensor is electrically connected to the fifth signal acquisition port of the main control chip.

8. A data acquisition instrument capable of replacing batteries without power outage according to any one of claims 1 to 7, characterized in that The data acquisition instrument also includes an RS485 interface and a wireless communication module; the RS485 interface is engaged with the shell and electrically connected to the signal acquisition port of the main control chip; the wireless communication module is electrically connected to the signal acquisition port of the main control chip; wherein the wireless communication module is a Bluetooth / WIFI / 2G / 3G / 4G / 5G module.

9. A data acquisition instrument capable of replacing batteries without power outage according to claim 8, characterized in that The three-axis acceleration sensor is a SC7A22HTR three-axis micromechanical digital accelerometer sensor chip; the main control chip is a STM32L151RET6 microcontroller; the tipping sensor is a SW-200D tilt sensor; and the wireless communication module is an EC800M-CAT1 wireless communication module.

10. A data acquisition instrument capable of replacing batteries without power outage according to any one of claims 1 to 7, characterized in that , the data acquisition instrument also includes an external battery; the external battery is detachably electrically connected to the battery interface.

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