Measuring device for engineering surveying

Abstract

The utility model belongs to the technical field of measurement, and particularly relates to a measuring device for engineering measurement, which comprises a controller, a laser transmitting circuit, an MEMS (micro-electromechanical system) micromirror driving circuit, an MEMS micromirror, a laser receiving circuit, a timing circuit and a wireless communication circuit. Laser signals transmitted by the laser transmitting circuit are firstly transmitted to the MEMS micromirror, the MEMS micromirror transmits the laser signals to the target object, the laser signal receiving circuit receives the laser signals reflected back by the target object, laser focusing is facilitated by transmitting the laser signals through the MEMS micromirror, the distance measuring precision is improved, and the distance measuring precision is improved. And moreover, the mirror surface direction of the EMS micromirror is controlled through the MEMS micromirror driving circuit, so that the emission angle of a laser signal can be changed, and the application range of distance measurement is widened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of measurement, specifically relates to a surveying device for engineering survey. BACKGROUND

[0002] With the acceleration of urbanization process and the continuous advancement of national infrastructure construction, engineering surveying technology is increasingly important in engineering construction, urban planning, resource exploration and other fields. First of all, in the field of engineering construction, engineering surveying technology is the key to ensuring engineering quality and improving construction efficiency. With the research and development of new building materials and the progress of construction technology, engineering surveying technology will play a greater role in precise construction and fine management. Secondly, in the field of urban planning, engineering surveying technology can provide scientific basis for urban planning. Through high-precision measurement data, land use, transportation planning, environmental protection and other work can be better carried out. For example, in the fields of urban underground space development and urban renewal and reconstruction, engineering surveying technology will play an important role.

[0003] Distance measurement plays an important role in engineering surveying, as it provides accurate data support for design and construction. By measuring the distance between two points, the precise layout and construction of buildings, roads, bridges and other projects can be ensured. Existing distance measurement uses laser measurement, but cannot change the angle of the laser signal according to actual needs, thereby limiting the measurement. SUMMARY

[0004] To solve the technical problems existing in the background art, the utility model provides a surveying device for engineering survey, which aims to change the angle of laser signal emission according to actual needs and focus the laser to improve the accuracy of distance measurement.

[0005] To achieve the above technical scheme, the utility model provides a surveying device for engineering survey, which comprises a controller, a laser emission circuit, a MEMS micromirror driving circuit, a MEMS micromirror, a laser receiving circuit, a timing circuit and a wireless communication circuit.

[0006] The controller is connected to the MEMS micromirror through the MEMS micromirror driving circuit, so that the MEMS micromirror driving circuit controls the mirror surface direction of the MEMS micromirror based on the received pulse control signal by outputting a pulse control signal to the MEMS micromirror driving circuit.

[0007] The controller is connected to the laser emission circuit to control the laser emission to emit a laser signal to the MEMS micromirror, so that the laser signal is emitted to the target object through the MEMS micromirror and reflected to the laser receiving circuit through the target object.

[0008] The laser receiving circuit is used to receive the reflected laser signal.

[0009] The timing circuit is connected with the controller, the laser receiving circuit and the laser emitting circuit, for timing the laser emitting and receiving time and sending the timing result to the controller, so that the controller calculates the distance based on the timing result;

[0010] The controller is connected with the wireless communication circuit, for realizing the wireless communication connection with the monitoring device.

[0011] Further, the device further comprises a positioning module connected with the controller, for positioning the position and sending the positioning information to the controller.

[0012] Further, the positioning module comprises a signal receiving unit T, a first signal filtering unit, a signal amplifying unit, a second signal filtering unit and a positioning unit, wherein the positioning unit adopts a GPS locator.

[0013] The signal receiving unit is used for receiving the GPS positioning signal; the first signal filtering unit is used for filtering the received GPS positioning signal to filter out the interference; the signal amplifying unit is used for amplifying the GPS positioning signal filtered by the first signal filtering unit; the second signal filtering unit is used for filtering the amplified signal; and the positioning unit is used for generating the position information based on the GPS positioning signal filtered by the second signal filtering unit.

[0014] Further, the signal receiving unit is connected with the input end of the first signal filtering unit; the first signal filtering unit comprises a first capacitor C1 and a first inductor L1, the first end of the first capacitor C1 is connected with the antenna; the second end of the first capacitor C1 is connected with the first end of the first inductor L1; and the second end of the first inductor L1 is connected with the input end of the signal amplifying unit.

[0015] The signal amplifying unit comprises a power amplification chip U1, the IN pin of the power amplification chip is connected with the second end of the first inductor L1; the EN pin of the power amplification chip U1 is grounded through a second capacitor C2; the OUT pin of the power amplification chip U1 is connected with the input end of the second signal filtering unit; the VDD pin of the power amplification chip U1 is connected with the first end of a first power supply VCC1 and a third capacitor C3, a fourth capacitor C4 and a fifth capacitor C5; the second end of the third capacitor C3, the second end of the fourth capacitor C4, the second end of the fifth capacitor C5 and the GND pin of the power amplification chip U1 are grounded.

[0016] The second signal filtering unit comprises a seventh capacitor C7 and a second inductor L2, the first end of the seventh capacitor C7 is connected with the OUT pin of the power amplification chip U1; the second end of the seventh capacitor C7 is connected with the first end of the second inductor L2, and the second end of the second inductor L2 is connected with the positioning unit.

[0017] Further, the positioning module further comprises an electrostatic elimination unit, the electrostatic elimination unit comprising: a first electrostatic suppressor D1, a second electrostatic suppressor D2 and a second resistor R2; one end of the first electrostatic suppressor D1 is connected with the antenna T; the second end of the first electrostatic suppressor D1 is grounded; the first end of the second electrostatic suppressor D2 and the first end of the second resistor R2 are connected with the output of the matching unit; the second end of the second electrostatic suppressor D2 and the second end of the second resistor R2 are grounded.

[0018] Further, the device further comprises an RS232 communication circuit.

[0019] Further, the wireless communication circuit comprises a WIFI communication circuit, a Bluetooth circuit and a Zigbee communication circuit.

[0020] The beneficial effects of the present application are as follows:

[0021] (1) The laser signal emitted by the laser emitting circuit is first emitted to the MEMS micromirror, and the laser signal is emitted to the target object by the MEMS micromirror, and the laser signal reflected back by the target object is received by the laser receiving signal circuit, and the emission by the MEMS micromirror helps to focus the laser, improves the accuracy of distance measurement, and the mirror surface direction of the EMS micromirror is controlled by the MEMS micromirror driving circuit, which helps to realize changing the angle of laser signal emission and improve the application range of distance measurement.

[0022] (2) The present application realizes wireless and wired communication between the device and external equipment through the RS232 communication circuit and the wireless communication circuit.

[0023] (3) The present application positions the position by the positioning module, which helps to improve the application range, and the secondary signal filtering unit and the electrostatic elimination unit are arranged in the positioning module, which helps to improve the accuracy of positioning.

[0024] The advantages of the additional aspects of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof serve to explain the present application, and do not constitute an improper limitation of the present application.

[0026] Figure 1 It is an electrical schematic diagram of one embodiment of the measurement device for engineering measurement.

[0027] Figure 2This is a circuit diagram of the positioning module of this utility model.

[0028] 1-Controller; 2-MEMS micromirror driving circuit; 3-MEMS micromirror; 4-Laser emitting circuit; 5-Timing circuit; 6-Laser receiving circuit; 7-RS232 communication circuit; 8-Wireless communication circuit; 9-Positioning module. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, each technical and scientific term used in this embodiment has the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0032] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0033] In this utility model, terms such as "fixed connection," "connected," and "joined" should be interpreted broadly, indicating a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediate medium. For researchers or maintenance personnel in this field, the specific meaning of the above terms in this utility model can be determined according to the specific circumstances, and should not be construed as a limitation of this utility model.

[0034] Example 1:

[0035] like Figure 1 As shown, this embodiment provides a measuring device for engineering measurement, including: a controller 1, a laser emitting circuit 4, a MEMS micromirror driving circuit 2, a MEMS micromirror 3, a laser receiving circuit 6, a timing circuit 5, an RS232 communication circuit 7, and a wireless communication circuit 8.

[0036] The controller 1 is connected with the MEMS micromirror 3 through the MEMS micromirror driving circuit 2, so as to control the mirror surface direction of the MEMS micromirror 3 by outputting a pulse control signal to the MEMS micromirror driving circuit 2.

[0037] The controller 1 is connected with the laser emission circuit 4, so as to control the laser emission to emit a laser signal to the MEMS micromirror, and emit the laser signal to a target object through the MEMS micromirror and reflect the laser signal to the laser receiving circuit through the target object.

[0038] The laser receiving circuit 6 is used for receiving the reflected laser signal.

[0039] The timing circuit 5 is connected with the controller 1, the laser receiving circuit 6 and the laser emission circuit 4, so as to time the laser emission and the laser receiving time, and send the timing result to the controller, so that the controller calculates the distance based on the timing result.

[0040] The controller 1 is connected with the RS232 communication circuit 7 and the wireless communication circuit 8, so as to realize the wired and wireless communication connection with external equipment.

[0041] The utility model discloses a laser signal is emitted to the MEMS micromirror first by making the laser emission circuit emit the laser signal, and the laser signal is emitted to the target object by the MEMS micromirror, and the laser signal is received by the laser receiving signal circuit through the target object reflection, and the emission through the MEMS micromirror helps the focusing of laser, improves the precision of ranging, and the mirror surface direction of EMS micromirror is controlled through the MEMS micromirror driving circuit, and it helps to realize the angle of laser signal emission, improves the application range of ranging use.

[0042] In the embodiment, the laser receiving circuit includes a photoelectric detection unit for receiving the reflected laser signal and converting the received laser signal into an electric signal, and a signal amplification unit for amplifying the converted electric signal. The photoelectric detection unit takes an avalanche photodiode (APD) circuit as the core.

[0043] In one embodiment, the device further comprises a positioning module, which comprises: a signal receiving unit T (i.e., an antenna T), a first signal filtering unit 9-1, a signal amplification unit 9-2, a second signal filtering unit 9-3, and a positioning unit 9-4, wherein the positioning unit adopts a GPS locator. The signal receiving unit is configured to receive a GPS positioning signal; the first signal filtering unit is configured to filter the received GPS positioning signal to filter out interference; the signal amplification unit is configured to amplify the GPS positioning signal filtered by the first signal filtering unit; the second signal filtering unit is configured to filter the amplified signal; and the positioning unit is configured to generate position information based on the GPS positioning signal filtered by the second signal filtering unit.

[0044] The signal receiving unit is connected with the input end of the first signal filtering unit 9-1; the first signal filtering unit 9-1 comprises a first capacitor C1 and a first inductor L1, the first end of the first capacitor C1 is connected with the antenna; the second end of the first capacitor C1 is connected with the first end of the first inductor L1; and the second end of the first inductor L1 is connected with the input end of the signal amplification unit 9-2.

[0045] The signal amplification unit 9-2 comprises a power amplification chip U1, the IN pin of the power amplification chip is connected with the second end of the first inductor L1; the EN pin of the power amplification chip U1 is grounded through a second capacitor C2; the OUT pin of the power amplification chip U1 is connected with the input end of the second signal filtering unit; the VDD pin of the power amplification chip U1 is connected with the first power supply VCC1 and the first end of a third capacitor C3, a fourth capacitor C4, and a fifth capacitor C5; the second end of the third capacitor C3, the second end of the fourth capacitor C4, the second end of the fifth capacitor C5, and the GND pin of the power amplification chip U1 are grounded.

[0046] The second signal filtering unit 9-3 comprises a seventh capacitor C7 and a second inductor L2, the first end of the seventh capacitor C7 is connected with the OUT pin of the power amplification chip U1; the second end of the seventh capacitor C7 is connected with the first end of the second inductor L2, and the second end of the second inductor L2 is connected with the positioning unit, thereby realizing position positioning.

[0047] The static electricity elimination unit comprises a first static electricity suppressor D1, a second static electricity suppressor D2, and a second resistor R2; one end of the first static electricity suppressor D1 is connected with the antenna T; the second end of the first static electricity suppressor D1 is grounded; the first end of the second static electricity suppressor D2 and the first end of the second resistor R2 are connected with the output of the matching unit; the second end of the second static electricity suppressor D2 and the second end of the second resistor R2 are grounded, and the static electricity elimination unit helps to eliminate static electricity and improve the positioning accuracy of the positioning module.

[0048] The utility model discloses a positioning module is positioned to position, is helpful to improve application range, and set up two -level signal filtering unit and static electricity elimination unit in positioning module, is helpful to improve the accuracy of positioning.

[0049] The same and similar parts among various embodiments in the specification can be referred to each other. Especially, for the terminal embodiment, since it is basically similar to the method embodiment, the description contrast is simple, and the relevant part can refer to the description in the method embodiment.

[0050] The unit described as a separate component can or can not be physically separated, and the component shown as a unit can or can not be a physical unit, that is, it can be located in one place or distributed to multiple network units. Part or all of the units can be selected to achieve the purpose of the embodiment according to actual needs.

[0051] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and the utility model can have various changes and changes for the maintenance personnel of the field. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A measuring device for engineering surveying, characterized in that, include: Controller, laser emitting circuit, MEMS micromirror driving circuit, MEMS micromirror, laser receiving circuit, timing circuit and wireless communication circuit; The controller is connected to the MEMS micromirror via a MEMS micromirror driving circuit, so that the MEMS micromirror driving circuit can control the mirror orientation of the MEMS micromirror based on the received pulse control signal by outputting a pulse control signal to the MEMS micromirror driving circuit. The controller is connected to the laser emitting circuit to control the laser emitting circuit to emit laser signals to the MEMS micromirror, so that the laser signals are emitted to the target object through the MEMS micromirror and reflected by the target object to the laser receiving circuit. The laser receiving circuit is used to receive the reflected laser signal; The timing circuit is connected to the controller, the laser receiving circuit, and the laser emitting circuit to time the laser emission and laser receiving times, and sends the timing results to the controller so that the controller can calculate the distance based on the timing results; The controller is connected to a wireless communication circuit to enable wireless communication with the monitoring equipment.

2. The engineering surveying measuring device according to claim 1, characterized in that, The device further includes a positioning module, which is connected to the controller to locate the position and send the positioning information to the controller.

3. The engineering surveying measuring device according to claim 2, characterized in that, The positioning module includes: a signal receiving unit T, a first signal filtering unit, a signal amplification unit, a second signal filtering unit, and a positioning unit, wherein the positioning unit adopts a GPS locator; A signal receiving unit is used to receive GPS positioning signals; a first signal filtering unit is used to filter the received GPS positioning signals to remove interference; a signal amplification unit is used to amplify the GPS positioning signals filtered by the first signal filtering unit; a second signal filtering unit is used to filter the amplified signals; and a positioning unit is used to generate location information based on the GPS positioning signals filtered by the second signal filtering unit.

4. The engineering surveying measuring device according to claim 3, characterized in that, The signal receiving unit is connected to the input terminal of the first signal filtering unit; the first signal filtering unit includes a first capacitor C1 and a first inductor L1, the first terminal of the first capacitor C1 is connected to the antenna; the second terminal of the first capacitor C1 is connected to the first terminal of the first inductor L1; the second terminal of the first inductor L1 is connected to the input terminal of the signal amplification unit. The signal amplification unit includes a power amplifier chip U1. The IN pin of the power amplifier chip is connected to the second terminal of the first inductor L1. The EN pin of the power amplifier chip U1 is grounded through the second capacitor C2. The OUT pin of the power amplifier chip U1 is connected to the input terminal of the second signal filtering unit. The VDD pin of the power amplifier chip U1 is connected to the first power supply VCC1 and the first terminals of the third capacitor C3, the fourth capacitor C4, and the fifth capacitor C5. The second terminals of the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, and the GND pin of the power amplifier chip U1 are grounded. The second signal filtering unit includes a seventh capacitor C7 and a second inductor L2. The first end of the seventh capacitor C7 is connected to the OUT pin of the power amplifier chip U1; the second end of the seventh capacitor C7 is connected to the first end of the second inductor L2, and the second end of the second inductor L2 is connected to the positioning unit.

5. The engineering surveying measuring device according to claim 4, characterized in that, The positioning module further includes an electrostatic discharge unit, which includes: a first electrostatic suppressor D1, a second electrostatic suppressor D2, and a second resistor R2; one end of the first electrostatic suppressor D1 is connected to the antenna T; the second end of the first electrostatic suppressor D1 is grounded; the first end of the second electrostatic suppressor D2 and the first end of the second resistor R2 are connected to the output of the matching unit; the second end of the second electrostatic suppressor D2 and the second end of the second resistor R2 are grounded.

6. The measuring device for engineering surveying according to claim 1, characterized in that, The device also includes an RS232 communication circuit.

7. The measuring device for engineering surveying according to claim 1, characterized in that, The wireless communication circuit includes a WIFI communication circuit, a Bluetooth circuit, and a Zigbee communication circuit.

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