CN205302787U

CN205302787U - Sensor proof box

Info

Publication number: CN205302787U
Application number: CN201620042315.7U
Authority: CN
Inventors: 王高见; 李源; 郭库
Original assignee: BEIJING GUANGDA BOYE TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: BEIJING GUANGDA BOYE TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2016-01-16
Filing date: 2016-01-16
Publication date: 2016-06-08
Anticipated expiration: 2026-01-16

Abstract

The utility model discloses a sensor proof box, including power module and experimental box module, power module is including the rectifier circuit, filter circuit and the voltage stabilizing circuit that connect gradually, voltage stabilizing circuit passes through the switch with the experimental box module and is connected, the switch still is connected with a detection module with voltage stabilizing circuit's connected node, a detection module is according to the first detected signal of this node voltage output, the switch still is connected with the 2nd detection module with the connected node of experimental box module, the 2nd detection module is according to this node voltage output second detected signal, indicating module is coupled and receives first detected signal and second detected signal respectively in a detection module and the 2nd detection module to according to first, two detection signal students. The utility model discloses after the student closes the power, under the condition that the power cord was not pulled up, make the suggestion for the student.

Description

Sensor chamber

Technical field

The utility model relates to teaching equipment, especially a kind of sensor chamber.

Background technology

Sensor chamber, especially computermatic sensor chamber selects representative sensor material object manufacture to form. The type of selected sensor is that employing is the most extensive at present, the typical products that technology is comparatively advanced. These sensors can represent technical development and the evolution of electronic automobile sensor substantially, contain the technical characterstic of current electronic automobile sensor. The operation servicing unit of this cover sensor experiment case acts on advanced teaching idea design, can the former car running environment of realistic simulation. This cover sensor experiment case can assorted multimedia control system, and PC main frame can realize starting to experimental facilities, cut out, moves control, fault setting, and data read, data show. This cover sensor experiment case can complete displaying electric-control system sensor structure and operation principle, help student to understand abstract control theory, can carry out simulation, the diagnosis and detection of sensor most common failure, the ability of training of students analysis and solve practical problem, computermatic sensor experiment case, by multidigit auto technologist Joint Designing, multiple functional, rational in infrastructure, advanced technology, safe and reliable, be the desirable teaching platform that automobile sensor course is lectured by all kinds of training organizations.

Wherein, sensor chamber is made up of test section, display section and control section, detect panel drafting and have sensor electrical schematic diagram and wiring diagram, can show circuit theory and the control principle of this sensor comprehensively, on the panel of test section, malfunction indicator lamp is installed, install and sensor pin corresponding detection port one by one, can obtain easily the service data of this sensor; On control panel, be useful on the sensor material object of demonstration, be useful on the digital watch that shows operating sensor data, there is the power switch of controlling on/off, have the fault of carrying out fault setting that switches set is set, have the dynamic adjustments of carrying out, simulate the sensor control handle of different operating conditions, use sensor experiment case, can make student have clear and definite understanding to the operation logic of sensor, be convenient to carry out intuitively experiment and the accident analysis of Circuits System.

For safety, the sensor chamber should not connecting power line in the time not using, and still, after student's powered-down, states the indicator lamp of sensor test panel and does not all work, and student forgets unavoidably and pulls out power line.

Utility model content

The deficiency existing for prior art, the purpose of this utility model is to provide a kind of sensor chamber, after student's powered-down, in the situation that power line is not pulled up, makes prompting to student.

For achieving the above object, the utility model provides following technical scheme: a kind of sensor chamber, comprise power module and experimental box module, described power module comprises the rectification circuit, filter circuit and the mu balanced circuit that connect successively, described mu balanced circuit is connected by switch with experimental box module, the connected node of described switch and mu balanced circuit is also connected with first detection module, and described first detection module is exported the first detection signal according to this node voltage; The connected node of described switch and experimental box module is also connected with the second detection module, and described the second detection module is exported the second detection signal according to this node voltage; Indicating module is coupled to first detection module and the second detection module receives respectively the first detection signal and the second detection signal, and according to first and second detection signal prompting student.

The utility model is further set to: described the first detection signal comprises the first amplifier, the in-phase end of described the first amplifier is for the voltage of receiving key and mu balanced circuit connected node, the end of oppisite phase short circuit of the output of described the first amplifier and described the first amplifier for exporting the first detection signal.

The utility model is further set to: described the second detection signal comprises the second amplifier, the in-phase end of described the second amplifier is for the voltage of receiving key and mu balanced circuit connected node, the end of oppisite phase short circuit of the output of described the second amplifier and described the second amplifier for exporting the second detection signal.

The utility model is further set to: described indicating module comprises control chip, and two inputs of described control chip are respectively used to receive the first detection signal and the second detection signal, and the output of described control chip is coupled to LED lamp.

The utility model is further set to: the model of described control chip is STC15F100.

By adopting technique scheme, when in the situation that power line after power-off is not pulled up, first detection module detects the voltage of switch front end, the first detection signal of output high level, the second detection module detects the voltage of switch rear end, the second detection signal of output low level, is carried out the signal of computing output low level to this two signal by single-chip microcomputer, make LED lamp shinny; When in the situation that power line after power-off is pulled up, first detection module detects the voltage of switch front end, the first detection signal of output low level, the second detection module detects the voltage of switch rear end, the second detection signal of output low level, by single-chip microcomputer, this two signal is carried out to computing and export the signal of high level, LED lamp is extinguished. Wherein, be ripe prior art by the simple logical operation of chip microcontroller.

Brief description of the drawings

Fig. 1 is the normal axomometric drawing of sensor chamber;

Fig. 2 is the functional block diagram of sensor chamber;

Fig. 3 is the schematic diagram of first detection module;

Fig. 4 is the schematic diagram of the second detection module;

Fig. 5 is the schematic diagram of indicating module.

Reference numeral: 1, control panel; 2, detect panel; 300, first detection module; 400, the second detection module; 500, the 3rd detection module.

Detailed description of the invention

Below, embodiment of the present utility model is described.

With reference to Fig. 1, sensor chamber is made up of sensor experiment case, multimedia collection control case, multimedia host and manipulation software thereof. Sensor experiment case has 18, and experimental box forms by two parts: Part I is test section, and detecting panel 2 draftings has sensor electrical schematic diagram and wiring diagram, can show circuit theory and the control principle of this sensor comprehensively. On the panel of test section, malfunction indicator lamp is installed, has installed and sensor pin corresponding detection port one by one, can obtain easily the service data of this sensor. Part II is to show and control section, on control panel 1, be useful on the sensor material object of demonstration, be useful on the digital watch that shows operating sensor data, there is the power switch of controlling on/off, there is the fault of carrying out fault setting that switches set is set, have the dynamic adjustments of carrying out, simulate the sensor control handle of different operating conditions. Use sensor experiment case, can make student have clear and definite understanding to the operation logic of sensor, be convenient to carry out intuitively experiment and the accident analysis of Circuits System.

Wherein sensor chamber also has the operation of multimedia system, and one is placed sensor experiment case, multimedia collection control case, multimedia host steadily; Whether its two inspection part and line conditions be intact, notes abnormalities and process in time; It three connects sensor experiment case, multimedia collection control case, multimedia host data wire, is plugged external power supply plug, turns on the power switch.

In addition, sensor chamber reconfigures sensor complete extraction from real vehicle again with other accessory systems, fully shows structure, the composition and working principle of sensor when static, makes student very clear; Dynamically time, can the various running statuses of analog sensor, make it produce corresponding working signal, thereby make the further working mechanism of understanding sensor of student, motivate students' interest in learning. Meanwhile, the inconvenience that teacher has been exempted impart knowledge to students on real vehicle, is conducive to teacher and carries out theory teaching and practice-training teaching, is conducive to again teacher and carries out class teaching and group instruction. On the detection panel 2 of experimental box, be painted with the circuit diagram of sensor, teacher both can carry out the teaching of " sensor circuit analysis " aspect, can on circuit diagram, carry out again principle analysis, make student have more clearly understanding to the operation principle of sensor, for accident analysis and the detection of carrying out system are laid a solid foundation; Experimental box has been installed the terminal corresponding with circuit diagram, combines with circuit diagram, can obtain easily the service data of system, and can not exert an influence to any system. Experimental box is equipped with manual failure setting device and multimedia controlled system. Failure setting device has real training and two kinds of patterns of teaching, and teaching pattern malfunction indicator lamp is lighted, and real training pattern malfunction indicator lamp does not work. In theoretical teaching process, teacher arranges fault by control panel 1 under teaching pattern, now malfunction indicator lamp is lighted, and student can carry out the impact of validation fault on sensor by the working condition of observation experiment case, makes student further understand composition and the operation principle of sensor. Under real training pattern, fault-free instruction, student can start to fix a breakdown, and is conducive to make student to understand sensor most common failure, puts diagnosis and detection thinking in order, has improved student's the ability of analyzing problems and solving them.

With reference to Fig. 2, sensor chamber is made up of power module, experimental box module, indicating module, wherein power module comprises rectification circuit, filter circuit and mu balanced circuit, wherein experimental box module comprises test section, display section and control section, mu balanced circuit is connected by switch SW with test section, at the front end of switch SW, be connected with first detection module 300, in the rear end of switch SW, be connected with the second detection module 400, first detection module 300 and the second detection module 400 are all connected to indicating module. First detection module 300 gathers voltage V1 like this, and export corresponding the first detection signal CH1 according to this magnitude of voltage, the second detection module 400 gathers voltage V2, and export corresponding the second detection signal CH2 according to this magnitude of voltage, the value of indicating module 500 foundation the first detection signal CH1 and the second detection signal CH2 is with prompting student.

With reference to Fig. 3, first detection module 300 comprises resistance R 1, resistance R 2 and amplifier U2, wherein the in-phase end of amplifier U2 is for the voltage V1 of receiving key SW and mu balanced circuit connected node, the end of oppisite phase short circuit of the output of amplifier U2 and the first amplifier U2 for exporting the first detection signal CH1. Resistance R 1 is the in-phase end of adjustable resistance, rear access amplifier U2 in parallel with resistance R 2.

With reference to Fig. 4, the second detection module 300 comprises resistance R 2, resistance R 2 and amplifier U3, wherein the in-phase end of amplifier U3 is for the voltage V2 of receiving key SW and mu balanced circuit connected node, the end of oppisite phase short circuit of the output of amplifier U3 and the second amplifier U3 for exporting the second detection signal CH2. Resistance R 2 is the in-phase end of adjustable resistance, rear access amplifier U3 in parallel with resistance R 2.

With reference to Fig. 5, indicating module 500 comprises control chip, and two inputs of control chip are respectively used to receive the first detection signal CH1 and the second detection signal CH2, and the output of control chip is coupled to the negative electrode of LED lamp, and the anode of LED lamp is coupled to VCC voltage. The model of this control chip is STC15F100.

When in the situation that power line after power-off is not pulled up, first detection module 300 detects the voltage of switch SW front end, the first detection signal CH1 of output high level, the second detection module 400 detects the voltage of switch SW rear end, the second detection signal CH2 of output low level, the signal that by single-chip microcomputer, this two signal is carried out computing output low level, makes LED lamp shinny; When in the situation that power line after power-off is pulled up, first detection module 300 detects the voltage V1 of switch SW front end, the first detection signal CH1 of output low level, the second detection module 400 detects the voltage V2 of switch SW rear end, the second detection signal CH2 of output low level, by single-chip microcomputer, this two signal is carried out to computing and export the signal of high level, LED lamp is extinguished. Wherein, be ripe prior art by the simple logical operation of chip microcontroller, repeat no more herein.

The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is also not only confined to above-described embodiment, and all technical schemes belonging under the utility model thinking all belong to protection domain of the present utility model. It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not depart under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a sensor chamber, comprise power module and experimental box module, described power module comprises the rectification circuit, filter circuit and the mu balanced circuit that connect successively, described mu balanced circuit is connected by switch with experimental box module, it is characterized in that: the connected node of described switch and mu balanced circuit is also connected with first detection module, described first detection module is exported the first detection signal according to this node voltage; The connected node of described switch and experimental box module is also connected with the second detection module, and described the second detection module is exported the second detection signal according to this node voltage; Indicating module is coupled to first detection module and the second detection module receives respectively the first detection signal and the second detection signal, and according to first and second detection signal prompting student.

2. sensor chamber according to claim 1, it is characterized in that: described the first detection signal comprises the first amplifier, the in-phase end of described the first amplifier is for the voltage of receiving key and mu balanced circuit connected node, the end of oppisite phase short circuit of the output of described the first amplifier and described the first amplifier for exporting the first detection signal.

3. sensor chamber according to claim 1, it is characterized in that: described the second detection signal comprises the second amplifier, the in-phase end of described the second amplifier is for the voltage of receiving key and mu balanced circuit connected node, the end of oppisite phase short circuit of the output of described the second amplifier and described the second amplifier for exporting the second detection signal.

4. sensor chamber according to claim 1, it is characterized in that: described indicating module comprises control chip, two inputs of described control chip are respectively used to receive the first detection signal and the second detection signal, and the output of described control chip is coupled to LED lamp.

5. sensor chamber according to claim 4, is characterized in that: the model of described control chip is STC15F100.