Signal acquisition device

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a signal acquisition device, which is used for an aerial work platform and comprises a sensing module, a signal acquisition processing module and a signal wire harness, the sensing module is in communication connection with the signal acquisition processing module through the signal wire harness, and the sensing module and the signal acquisition module adopt a split design; wherein the sensing module comprises an acceleration measuring unit and a distance measuring unit, the acceleration measuring unit is used for acquiring a three-axis acceleration signal of the aerial work platform, and the distance measuring unit is used for acquiring a lifting signal of the aerial work platform; and the signal acquisition and processing module is used for acquiring and processing the acquired signals. The sensing module is configured to realize comprehensive acquisition of information such as the working state and the lifting condition in combination with the working condition, and meanwhile, the signal acquisition and processing module is configured to have certain edge end calculation performance, so that the omnibearing real-time state monitoring of the aerial work platform can be realized, and the management and operation and maintenance level of a renter and a customer on a vehicle can be remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a signal acquisition device. Background Art

[0002] Scissor-type work platforms, due to their compact footprint and flexibility, are widely used in construction, civil engineering, and other fields, particularly in electromechanical installation and interior decoration. Since scissor-type work platforms can operate in a variety of locations, monitoring the vehicle's operating status provides effective insights into its dynamics, facilitating management and deployment by lessors.

[0003] However, the current scissor-type work platforms mainly monitor the internal information of the vehicle itself, such as current, voltage and speed, without combining information such as working conditions to conduct comprehensive monitoring of the vehicle's posture, elevation, operating status and other information. This has led to frequent safety accidents caused by illegal operations, such as unreasonable elevation during the ascent leading to collisions with people, vehicles rising on uneven ground causing equipment to tip over, and overloaded work vehicles, thus bringing management and safety problems. Utility Model Content

[0004] The purpose of the utility model is to provide a signal acquisition device to solve the management and safety problems caused by the existing scissor-type work platform not being able to monitor the operating conditions.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a signal acquisition device for an aerial work platform, comprising a sensor module, a signal acquisition and processing module and a signal harness, wherein the sensor module is communicatively connected to the signal acquisition and processing module via the signal harness, and the sensor module and the signal acquisition module adopt a split design; wherein,

[0006] The sensing module includes an acceleration measurement unit and a distance measurement unit. The acceleration measurement unit is used to obtain the three-axis acceleration signal of the aerial work platform, and the distance measurement unit is used to obtain the lifting signal of the aerial work platform.

[0007] The signal acquisition and processing module is used to acquire and process the acquired signal.

[0008] Optionally, the sensing module also includes a first box body and a metal bracket, the first box body has an upward opening, the metal bracket includes an integrally formed cover plate and a fixed block, the cover plate covers the opening of the first box body, the fixed block extends from the lower surface of the cover plate into the first box body, the acceleration measurement unit is arranged on the fixed block, and the ranging unit is arranged on the upper surface of the cover plate.

[0009] Optionally, a flexible buffer pad is provided between the distance measuring unit and the cover plate.

[0010] Optionally, the aerial work platform includes a mobile base and an operating platform that is liftably arranged on the mobile base, the sensing module is arranged on the mobile base, the acceleration measurement unit obtains the three-axis acceleration signal of the operating platform by measuring the vibration signal of the mobile base, and the ranging unit obtains the lifting signal of the operating platform by measuring the position of the lower surface of the operating platform.

[0011] Optionally, the signal acquisition and processing module includes a second box and a circuit board, a signal processing module and a microprocessor module arranged in the second box, the signal processing module and the microprocessor module are both arranged on the circuit board and are communicatively connected through the lines on the circuit board; wherein,

[0012] The signal processing module is connected to the acceleration measurement unit and is used to convert the three-axis acceleration signal into a digital signal and transmit it to the microprocessing module;

[0013] The microprocessor module is used to receive and process the lifting signal and the digital signal.

[0014] Optionally, the signal processing module is configured with a bandpass filtering circuit and a high-speed acquisition circuit.

[0015] Optionally, the signal acquisition and processing module further includes a temperature sensor provided on the outer wall of the second box, and the temperature sensor is communicatively connected to the microprocessor module.

[0016] Optionally, the signal acquisition and processing module further includes an angle sensor disposed on the circuit board, and the angle sensor is communicatively connected to the microprocessor module.

[0017] Optionally, a power module, a power socket and an emergency power supply are provided in the second box, and the power socket and the emergency power supply are electrically connected to the power module respectively, and either the power socket and the emergency power supply can be used to supply power to the power module.

[0018] Optionally, the signal acquisition and processing module also includes a storage module and a communication module arranged on the circuit board, the storage module is communicatively connected to the microprocessor module to store the data information processed by the microprocessor module, and the communication module is communicatively connected to the storage module and is used to send the stored data information to the cloud.

[0019] The signal acquisition device provided by this utility model utilizes the sensor module, angle sensor, and temperature sensor to comprehensively capture information such as operating status, elevation, and vehicle posture, based on operating conditions. Furthermore, the signal acquisition and processing module, equipped with edge computing capabilities, enables comprehensive, real-time status monitoring of aerial work platforms, significantly improving vehicle management and maintenance for lessors and customers. Furthermore, the sensor module and signal acquisition and processing module are designed as separate components, enhancing the measurement reliability of the acceleration measurement unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Those skilled in the art will appreciate that the accompanying drawings are provided to better understand the present invention and do not constitute any limitation on the scope of the present invention.

[0021] Figure 1 This is an overall schematic diagram of a signal acquisition device provided by an embodiment of the present invention;

[0022] Figure 2 A front view of a sensor module provided by an embodiment of the present invention;

[0023] Figure 3 A top view of a signal acquisition and processing module provided in one embodiment of the present invention;

[0024] Figure 4 This is a front view of a signal acquisition and processing module provided in one embodiment of the present utility model.

[0025] in:

[0026] 100-sensor module; 101-acceleration measurement unit; 102-distance measurement unit; 103-first box; 104-cover; 105-fixed block; 106-flexible buffer pad; 200-signal acquisition and processing module; 201-second box; 202-circuit board; 203-power module; 204-signal processing module; 205-microprocessor module; 206-temperature sensor; 207-angle sensor; 208-power socket; 209-emergency power supply; 210-storage module; 211-communication module; 300-signal wiring harness. DETAILED DESCRIPTION

[0027] In order to make the purpose, advantages and features of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Any modification of the structure, change in the proportional relationship or adjustment of the size, under the condition that the effect produced by the present invention and the purpose that can be achieved are the same or similar, should still fall within the scope of the technical content disclosed in the present invention.

[0028] As used in the present invention, the singular forms "a", "an" and "the" include plural objects, unless the content clearly indicates otherwise. As used in the present invention, the term "or" is generally used in a sense including "and / or", unless the content clearly indicates otherwise. As used in the present invention, the term "several" is generally used in a sense including "at least one", unless the content clearly indicates otherwise. As used in the present invention, the term "at least two" is generally used in a sense including "two or more", unless the content clearly indicates otherwise. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" and "third" may explicitly or implicitly include one or at least two of the features.

[0029] In the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0030] Please refer to Figure 1 and Figure 2This embodiment provides a signal acquisition device for an aerial work platform. The signal acquisition device includes a sensor module 100, a signal acquisition and processing module 200, and a signal harness 300. The sensor module 100 is connected to the signal acquisition and processing module 200 via the signal harness 300, and the sensor module 100 and the signal acquisition module are designed to be split.

[0031] The sensor module 100 includes an acceleration measurement unit 101 and a distance measurement unit 102. The acceleration measurement unit 101 is used to obtain the three-axis acceleration signal of the aerial work platform, and the distance measurement unit 102 is used to obtain the lifting signal of the aerial work platform;

[0032] The signal acquisition and processing module 200 is used to acquire and process the acquired signals.

[0033] By configuring the sensor module 100, comprehensive information such as the operating status and elevation can be obtained based on the working conditions. By configuring the signal acquisition and processing module 200 with a certain degree of edge computing, comprehensive real-time status monitoring of the aerial work platform can be achieved, significantly improving the management and operation and maintenance of the vehicle by lessors and customers. In addition, considering that an excessively large size can easily affect the reliability of the acceleration measurement unit 101, this embodiment designs the sensor module 100 and the signal acquisition and processing module 200 as a separate structure to ensure the measurement reliability of the acceleration measurement unit 101.

[0034] Preferably, the sensor module 100 also includes a first box body 103 and a metal bracket. The first box body 103 has an upward opening. The metal bracket includes an integrally formed cover plate 104 and a fixed block 105. The cover plate 104 covers the opening of the first box body 103. The fixed block 105 extends from the lower surface of the cover plate 104 into the first box body 103. The acceleration measurement unit 101 is arranged on the fixed block 105, and the ranging unit 102 is arranged on the upper surface of the cover plate 104.

[0035] In this embodiment, to ensure reliable signal transmission, both the first housing 103 and the metal bracket are preferably made of a hard metal, such as stainless steel. The cover plate 104 and the fixing block 105 are designed as an integrated structure, which can reduce the impact of vibration generated during operation of the aerial work platform on the acceleration measurement unit 101 and the ranging unit 102, thereby improving the measurement accuracy and reliability of the acceleration measurement unit 101 and the ranging unit 102.

[0036] In this embodiment, the cover plate 104 can be fixed to the first box body 103 by means of threaded connection or the like, and covers the opening of the first box body 103 to prevent external substances such as dust and rainwater from entering the first box body 103 .

[0037] Preferably, a flexible cushion 106 is provided between the ranging unit 102 and the cover plate 104. The flexible cushion 106 is provided to cushion vibrations transmitted from the aerial work platform, thereby preventing damage to the precision electronic components within the ranging unit 102. In this embodiment, the flexible cushion 106 is, for example, a rubber cushion. The flexible cushion 106 can be secured to the upper surface of the cover plate 104 by gluing, and the ranging unit 102 can also be secured to the flexible cushion 106 by gluing.

[0038] Preferably, the aerial work platform includes a mobile base and an operating platform that is liftably mounted on the mobile base. The sensor module 100 is mounted on the mobile base. The acceleration measurement unit 101 obtains a three-axis acceleration signal of the operating platform by measuring the vibration signal of the mobile base. The ranging unit 102 obtains a lifting signal of the operating platform by measuring the position of the lower surface of the operating platform. In this embodiment, the aerial work platform includes but is not limited to a scissor-type work platform. The mobile base can move on the road surface. The operating platform is liftably mounted on the mobile base. During the movement of the mobile base and the lifting of the operating platform, vibration signals can be transmitted to the acceleration measurement unit 101. The acceleration measurement unit 101 includes but is not limited to a three-axis accelerometer composed of three accelerometers that are orthogonal to each other and arranged on a fixed block 105. The ranging unit 102 includes but is not limited to a laser ranging device that can be arranged at the center of the mobile base and performs laser ranging with the lower surface of the operating platform as the target, thereby achieving synchronous acquisition of vibration signals and ranging signals.

[0039] Please combine Figure 3 and Figure 4 The signal acquisition and processing module 200 includes a second housing 201 and a circuit board 202, a signal processing module 204, and a microprocessor module 205 disposed in the second housing 201. The signal processing module 204 and the microprocessor module 205 are both arranged on the circuit board 202 and are communicated through the circuit board 202; wherein,

[0040] The signal processing module 204 is connected to the acceleration measurement unit 101 and is used to convert the three-axis acceleration signal into a digital signal and transmit it to the microprocessing module 205;

[0041] The microprocessor module 205 is used to receive and process the lifting signal and the digital signal.

[0042] In this embodiment, the second housing 201 is a sealed enclosure, housing the circuit board 202 and various modules. This second housing 201 can also be mounted on the mobile base of the aerial work platform. As previously mentioned, the reason for designing the first housing 103 and the second housing 201 separately to house the different modules is to avoid the increased bulk of an integrated housing, which could compromise the measurement reliability of the triaxial accelerometer.

[0043] Preferably, the signal processing module 204 is configured with a bandpass filter circuit and a high-speed acquisition circuit, which utilizes the bandpass filter circuit to eliminate hardware signal noise, and utilizes the high-speed acquisition circuit to achieve high-speed acquisition of vibration signals, which are converted into digital signals and then transmitted to the microprocessor module 205.

[0044] Preferably, the signal acquisition and processing module 200 further includes a temperature sensor 206 provided on the outer wall of the second box body 201 . The temperature sensor 206 is in communication with the microprocessor module 205 . The temperature sensor 206 is used to collect the external environment temperature.

[0045] Preferably, the signal acquisition and processing module 200 also includes an angle sensor 207 arranged on the circuit board 202. The angle sensor 207 is communicatively connected to the microprocessor module 205. The angle sensor 207 is used to obtain posture information of the aerial work platform, such as whether the mobile base is on a slope or uneven road surface.

[0046] Preferably, a power module 203, a power socket 208 and an emergency power supply 209 are provided in the second box body 201. The power socket 208 and the emergency power supply 209 are electrically connected to the power module 203 respectively. Either the power socket 208 or the emergency power supply 209 can be used to power the power module 203 to realize the operation of the entire device. When the external power supply cannot be supplied through the power socket 208, the power module 203 can be switched to the emergency power supply 209 for power supply.

[0047] Preferably, the signal acquisition and processing module 200 further includes a storage module 210 and a communication module 211 disposed on the circuit board 202. The storage module 210 is communicatively connected to the microprocessor module 205 to store data information processed by the microprocessor module 205. The communication module 211 is communicatively connected to the storage module and is used to send the stored data information to the cloud. The communication module 211 includes, but is not limited to, a 4G communication module, a Bluetooth communication module, and the like.

[0048] It should be emphasized that the measuring components such as the acceleration measurement unit 101, the ranging unit 102, the temperature sensor 206, the angle sensor 207, and the modules such as the power supply module 203, the signal processing module 204, the microprocessor module 205, the storage module 210, the communication module 211, and the circuit structures such as the circuit board 202, the bandpass filter circuit and the high-speed acquisition circuit mentioned in the present invention are all technologies well known in the art. The present invention does not make any improvements to them. At the same time, the present invention does not involve improvements to computer programs. Those skilled in the art should know how to specifically implement communication connections between each other.

[0049] It should be noted that the wire holes opened on the first box body 103 and the second box body 201 for the convenience of wiring should be sealed with sealant for waterproofing.

[0050] In summary, the present invention provides a signal acquisition device that, by configuring the sensor module 100, angle sensor 207, and temperature sensor 206, can comprehensively acquire information such as the operating status, elevation, and vehicle posture in combination with the operating conditions. Furthermore, by configuring the signal acquisition and processing module 200 with a certain degree of edge computing capabilities, it can achieve all-round real-time status monitoring of the aerial work platform, significantly improving the management and operation and maintenance level of the vehicle for lessors and customers. Furthermore, the sensor module 100 and signal acquisition and processing module 200 are designed as a split structure, which can improve the measurement reliability of the acceleration measurement unit 101.

[0051] Furthermore, it should be recognized that although the present invention has been disclosed above with reference to preferred embodiments, the above embodiments are not intended to limit the present invention. Any person skilled in the art will be able to utilize the above-disclosed technical content to make numerous possible variations and modifications to the present invention, or to modify the present invention into equivalent embodiments with equivalent variations, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A signal acquisition device for an aerial work platform, characterized in that: It includes a sensor module, a signal acquisition and processing module and a signal harness. The sensor module is connected to the signal acquisition and processing module through the signal harness, and the sensor module and the signal acquisition and processing module adopt a split design; wherein, The sensing module includes an acceleration measurement unit and a distance measurement unit. The acceleration measurement unit is used to obtain the three-axis acceleration signal of the aerial work platform, and the distance measurement unit is used to obtain the lifting signal of the aerial work platform. The signal acquisition and processing module is used to acquire and process the acquired signal.

2. The signal acquisition device according to claim 1, characterized in that: The sensor module also includes a first box and a metal bracket. The first box has an upward opening. The metal bracket includes an integrally formed cover and a fixed block. The cover covers the opening of the first box. The fixed block extends from the lower surface of the cover into the first box. The acceleration measurement unit is arranged on the fixed block, and the ranging unit is arranged on the upper surface of the cover.

3. The signal acquisition device according to claim 2, characterized in that: A flexible buffer pad is provided between the distance measuring unit and the cover plate.

4. The signal acquisition device according to claim 2, characterized in that: The aerial work platform includes a mobile base and an operating platform that is liftably arranged on the mobile base. The sensor module is arranged on the mobile base. The acceleration measurement unit obtains the three-axis acceleration signal of the operating platform by measuring the vibration signal of the mobile base. The ranging unit obtains the lifting signal of the operating platform by measuring the position of the lower surface of the operating platform.

5. The signal acquisition device according to claim 1, characterized in that: The signal acquisition and processing module includes a second box body and a circuit board, a signal processing module and a microprocessor module arranged in the second box body. The signal processing module and the microprocessor module are both arranged on the circuit board and realize communication connection through the lines on the circuit board; wherein, The signal processing module is connected to the acceleration measurement unit and is used to convert the three-axis acceleration signal into a digital signal and transmit it to the microprocessing module; The microprocessor module is used to receive and process the lifting signal and the digital signal.

6. The signal acquisition device according to claim 5, characterized in that: The signal processing module is equipped with a bandpass filtering circuit and a high-speed acquisition circuit.

7. The signal acquisition device according to claim 5, characterized in that: The signal acquisition and processing module further includes a temperature sensor disposed on the outer wall of the second box, and the temperature sensor is communicatively connected to the microprocessor module.

8. The signal acquisition device according to claim 5, characterized in that: The signal acquisition and processing module further includes an angle sensor disposed on the circuit board, and the angle sensor is communicatively connected to the microprocessor module.

9. The signal acquisition device according to claim 5, characterized in that: The second box is provided with a power module, a power socket and an emergency power supply. The power socket and the emergency power supply are electrically connected to the power module respectively. Either the power socket or the emergency power supply can be used to supply power to the power module.

10. The signal acquisition device according to claim 5, characterized in that: The signal acquisition and processing module also includes a storage module and a communication module arranged on the circuit board. The storage module is communicatively connected to the microprocessor module to store the data information processed by the microprocessor module. The communication module is communicatively connected to the storage module and is used to send the stored data information to the cloud.

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