CN116256818A - Vibration image composite sensor target simulation device - Google Patents

Abstract

The invention discloses a vibration image composite sensor target simulation device, which belongs to the technical field of wireless sensing. It includes vibration signal files, controllers, digital-to-analog converters, amplitude regulators, motion drivers, motors, guide rails, and target image model sets; generates simulated vibration signal files based on existing target data; the controller receives the generated After the vibration signal file, on the one hand, according to the motion information in the vibration signal file, it is converted into a control command and sent to the motion driver, and the motion driver generates a motor control signal to make the target picture move on the guide rail according to the plan; on the other hand, the controller according to the vibration signal The distance information in the file is converted into a digital signal, and the digital-to-analog converter converts it into an analog signal after receiving the digital signal, and sends it to the amplitude regulator for amplitude adjustment to simulate the vibration information of the target. The invention does not require a large number of field tests to support the research and development work of the sensor, and can effectively improve the research and development work efficiency.

Description

A vibration image composite sensor target simulation device

technical field

The invention relates to a vibration image composite sensor target simulation device, in particular to a vibration image composite sensor ground personnel and vehicle target simulation device, through which the characteristics of field personnel and vehicle targets can be simulated in a laboratory environment, The vibration image compound sensor performance test is performed, and the invention belongs to the field of wireless sensing.

Background technique

A wireless sensor network consists of a large number of nodes in a self-organizing manner to form a multi-hop network to achieve data collection, processing and transmission functions. Among them, the sensor nodes that can perceive various environmental variables of the outside world are used as the end nodes of the network. The vibration image composite sensor is an end node for detecting ground targets such as people and vehicles. The vibration transducer in this node detects the ground vibration signal generated by the target movement, and completes the node duty work. When the ground vibration characteristics reach the preset conditions , triggering the work of the image sensor in the node, the image sensor acquires the target image, and the target vibration signal and image information are processed and fused to generate the target detection information of the node. In the research and development process of the vibration image composite sensor, multiple processing links such as the acquisition of the target vibration signal, the setting of vibration characteristic preset conditions, and the fusion of vibration and image information require a large number of field tests for support. The field test needs to test and verify various combinations of conditions such as different targets, distances, trajectories, and environments, which consumes a lot of manpower, material resources, and time costs. Field tests have become the main factor limiting the iterative progress of node R&D. Therefore, it is necessary to develop a target simulator to simulate the target motion characteristics in various combined scenarios in the laboratory environment, and effectively support the research and development of composite sensors.

Contents of the invention

In view of this, the present invention provides a vibration image composite sensor target simulation device. The device can simulate the characteristic data of different targets, different distances, different motion trajectories, and different environmental conditions in the laboratory. It does not require a large number of field tests to support the development of sensors, which can effectively improve the efficiency of research and development.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A vibration image compound sensor target simulation device, including a vibration signal file (1), a controller (2), a digital-to-analog converter (3), an amplitude regulator (4), a motion driver (5), a motor and a guide rail (6 ) and the target picture model set (7);

Vibration signal file (1) is used for providing the digitized file of analog target movement vibration signal;

The controller (2) outputs a control command containing motion information and a digital signal containing vibration information according to the received digital file;

The digital-to-analog converter (3) is used to perform digital-to-analog conversion on the received digital signal to output an analog signal;

The amplitude regulator (4) is used to adjust the amplitude of the received analog signal to simulate the vibration information of the target;

The motion driver (5) is used to receive control instructions from the controller (2) and generate motor drive signals;

Driven by the motion driver signal, the motor and the guide rail (6) move along the guide rail according to the plan to simulate multiple target motion scenes;

The target picture model set (7) is made up of multiple target models of different sizes and attitudes, selected according to the characteristics of the target to be simulated, and the target picture is installed on the motor to move with the motor;

The implementation process of the simulation is as follows:

Generate a simulated vibration signal file according to the data of the existing target; after the controller receives the generated vibration signal file, on the one hand, it converts the motion information in the vibration signal file into a control command and sends it to the motion driver, and the motion driver generates a motor control Signal, so that the target picture moves on the guide rail according to the plan; on the other hand, the controller converts the distance information in the vibration signal file into a digital signal, and the digital-to-analog converter converts it into an analog signal after receiving the digital signal, and sends it to the amplitude adjustment The vibration information of the simulated target is adjusted by the controller.

The beneficial effect that the present invention produces by adopting above-mentioned technical scheme is:

The purpose of the present invention is to propose a simulation device that can perform ground target motion characteristics in a laboratory environment in order to solve the problem that the field test consumes a lot of manpower, material resources and time costs in the research and development process of the existing vibration image sensor. The device can simulate characteristic data of different targets, different distances, different motion trajectories, and different environmental conditions in the laboratory. It does not require a large number of field tests to support sensor research and development, effectively reducing manpower, material resources and time costs, and improving research and development efficiency.

Description of drawings

Fig. 1 is a compositional block diagram of the simulation device according to the present invention;

Detailed ways

Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art Generally speaking, other drawings can also be obtained based on these drawings on the premise of not paying creative work.

A vibration image compound sensor target simulation device, including a vibration signal file (1), a controller (2), a digital-to-analog converter (3), an amplitude regulator (4), a motion driver (5), a motor and a guide rail (6 ) and the target picture model set (7);

Vibration signal file (1) is used for providing the digitized file of analog target movement vibration signal;

The controller (2) outputs a control command containing motion information and a digital signal containing vibration information according to the received digital file;

The digital-to-analog converter (3) is used to perform digital-to-analog conversion on the received digital signal to output an analog signal;

The amplitude regulator (4) is used to adjust the amplitude of the received analog signal to simulate the vibration information of the target;

The motion driver (5) is used to receive control instructions from the controller (2) and generate motor drive signals;

Driven by the motion driver signal, the motor and the guide rail (6) move along the guide rail according to the plan to simulate multiple target motion scenes;

The target picture model set (7) is made up of multiple target models of different sizes and attitudes, selected according to the characteristics of the target to be simulated, and the target picture is installed on the motor to move with the motor;

The implementation process of the simulation is as follows:

Generate a simulated vibration signal file according to the data of the existing target; after the controller receives the generated vibration signal file, on the one hand, it converts the motion information in the vibration signal file into a control command and sends it to the motion driver, and the motion driver generates a motor control Signal, so that the target picture moves on the guide rail according to the plan; on the other hand, the controller converts the distance information in the vibration signal file into a digital signal, and the digital-to-analog converter converts it into an analog signal after receiving the digital signal, and sends it to the amplitude adjustment The vibration information of the simulated target is adjusted by the controller.

Further illustrate by more specific embodiment below:

As shown in Figure 1, a vibration image compound sensor target simulation device includes: vibration signal file 1, controller 2, digital-to-analog converter 3, amplitude regulator 4, motion driver 5, motor and guide rail 6, target image model set 7. Embodiment Connect the circuit according to Fig. 1.

Vibration signal file 1 is a digitized file of the vibration signal of the simulated target movement. The file can have different distances, speeds, and noise levels according to the characteristics of the simulated target; the controller 2 performs file output and device simulation control according to the input vibration signal file as required. Including pause, start, etc. At the same time, the controller can receive the control signal output by the vibration image composite sensor to trigger the motion driver to perform an action; the digital-to-analog converter 3 performs analog-to-digital conversion on the digital signal output by the controller, and outputs an analog signal; the amplitude regulator 4 converts the output analog signal Adjust the amplitude to meet the interface requirements of the vibration image sensor; the motion driver 5 receives the control command from the controller 2 to generate a motor drive signal; the motor and the guide rail 6 move along the guide rail according to a predetermined plan under the drive of the motion driver signal, and the motor can be driven by multiple The platform is used to simulate multiple target motion scenes; the target picture model set 7 is composed of multiple target models of different sizes and attitudes, selected according to the characteristics of the target to be simulated, and the target picture is installed on the motor to move with the motor.

The following takes a single target 30 meters away from the sensor node, tangential movement, as an example to illustrate the implementation process of the simulation device:

(1) Vibration signal file generation: According to the data of the existing tangential movement personnel target, the target distance, target speed, target weight, and environmental noise are corrected to generate the vibration signal file for this simulation.

(2) Target picture selection: Select a picture of the target at a distance of 30 meters and install it on the motor.

(3) Vibration signal loading: Input the vibration signal file and simulation control file to the controller to complete the vibration file loading.

(4) Vibration signal simulation: When the target simulation is started, according to the control file settings, the vibration signal is input to the sensor node after digital-to-analog conversion and amplitude adjustment.

(5) Image target simulation: The controller controls the motion driver according to the image start signal output by the vibration image composite sensor, and drives the motor to drive the target image to move along the track to complete the target image simulation task.

Claims (1)

1. A vibration image composite sensor target simulation device is characterized in that it comprises a vibration signal file (1), a controller (2), a digital-to-analog converter (3), an amplitude adjuster (4), and a motion driver (5) , motor and guide rail (6) and target picture model set (7); Vibration signal file (1) is used for providing the digitized file of analog target movement vibration signal; The controller (2) outputs a control command containing motion information and a digital signal containing vibration information according to the received digital file; The digital-to-analog converter (3) is used to perform digital-to-analog conversion on the received digital signal to output an analog signal; The amplitude regulator (4) is used to adjust the amplitude of the received analog signal to simulate the vibration information of the target; The motion driver (5) is used to receive control instructions from the controller (2) and generate motor drive signals; Driven by the motion driver signal, the motor and the guide rail (6) move along the guide rail according to the plan to simulate multiple target motion scenes; The target picture model set (7) is made up of multiple target models of different sizes and attitudes, selected according to the characteristics of the target to be simulated, and the target picture is installed on the motor to move with the motor; The implementation process of the simulation is as follows: Generate a simulated vibration signal file according to the data of the existing target; after the controller receives the generated vibration signal file, on the one hand, it converts the motion information in the vibration signal file into a control command and sends it to the motion driver, and the motion driver generates a motor control Signal, so that the target picture moves on the guide rail according to the plan; on the other hand, the controller converts the distance information in the vibration signal file into a digital signal, and the digital-to-analog converter converts it into an analog signal after receiving the digital signal, and sends it to the amplitude adjustment The vibration information of the simulated target is adjusted by the controller.

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