CN205317830U

CN205317830U - But remote control SOE measuring signal generator based on NRF

Info

Publication number: CN205317830U
Application number: CN201521020732.3U
Authority: CN
Inventors: 林展炳; 苏禹; 张恩; 邓栋方; 黄俊杰
Original assignee: Beijing Institute of Technology Zhuhai
Current assignee: Beijing Institute of Technology Zhuhai
Priority date: 2015-12-09
Filing date: 2015-12-09
Publication date: 2016-06-15
Anticipated expiration: 2025-12-09

Abstract

The utility model discloses a but remote control SOE measuring signal generator based on NRF, including the crystal oscillator, a NRF wireless module, a isolating driver output module and a control module, the crystal oscillator for produce high -resolution low pressure test wave form signal, a control module is connected to its output, a NRF wireless module for receive outside radiofrequency signal, it is connected with a control module, isolating driver output module for keep apart and drive the back reexport, its input connection control module test signal, a control module according to a NRF wireless module's input information, produces high -resolution test wave form to through the corresponding test wave form of isolating driver output module output. This signal generator volume is less, the cost is lower, the stable performance, and the precision is high, and has remote control function.

Description

Based on the remote controlled SOE measuring signal generator of NRF

[technical field]

The utility model relates to electronic technology field, is specifically related to the measuring signal generator of a kind of event sequence recording system.

[background technology]

In automatic control system, event sequence record (English: SequenceofEvent, hereinafter referred to as SOE) system is the system of the most frequently used recording exceptional situation. When carrying out fault and anomaly analysis when system, the interval order of the Time To Event of SOE system log (SYSLOG), initiating event and chain generation event is the most important foundation, so it is extremely important for being verified by the record accuracy of SOE in system overhaul process. Existing SOE tester volume is relatively big, cost height, and inconvenience is carried, and can not Long-distance Control.

[summary of the invention]

In view of this, the utility model provides a kind of remote controlled SOE measuring signal generator based on Nordic company radio frequency module (hereinafter referred to as NRF)

The utility model adopts following technical scheme, it is to construct based on the remote controlled SOE measuring signal generator of NRF, comprise crystal oscillator, a NRF wireless module, isolation drive output module and the first control module; Crystal oscillator, for generation of high-resolution low voltage experiment waveform signal, its output terminal connects the first control module; One NRF wireless module, for receiving outside radiofrequency signal, it is connected with the first control module; Isolation drive output module, for exporting after test signal isolation and driving, its input terminus connects the first control module again; First control module, according to the input information of a NRF wireless module, coordinates with crystal oscillator and produces high-resolution test waveform, and export corresponding test waveform by isolation drive output module.

Preferably, it also comprises key-press module; Key-press module, for the input of control information, its output terminal connects the first control module; Described first control module, also according to the input of key-press module, produces high-resolution test waveform, and exports corresponding test waveform by isolation drive output module.

Preferably, the oscillation frequency of described crystal oscillator is 32.768KHz, has 32 timers in described first control module, and described first control module can produce the low voltage experiment waveform signal of resolving power≤1ms.

Advantageous Effects of the present utility model is: the remote controlled SOE measuring signal generator volume based on NRF of the present utility model is less, cost is low, stable performance, precision height, and has remote control function. Be arranged on inconvenience contact or the place of danger when SOE system, such as in high-altitude, high pressure, the place such as high radiation, so that it may to use the radio function of this device SOE system accurately to be verified.

[accompanying drawing explanation]

The composition frame chart of the remote controlled SOE measuring signal generator based on NRF in Fig. 1 embodiment one;

The key-press module schematic circuit diagram of the remote controlled SOE measuring signal generator based on NRF in Fig. 2 embodiment one;

The crystal oscillator schematic circuit diagram of the remote controlled SOE measuring signal generator based on NRF in Fig. 3 embodiment one;

First power transfer module schematic circuit diagram of the remote controlled SOE measuring signal generator based on NRF in Fig. 4 embodiment one;

One NRF wireless module schematic circuit diagram of the remote controlled SOE measuring signal generator based on NRF in Fig. 5 embodiment one;

The isolation drive output module schematic circuit diagram of the remote controlled SOE measuring signal generator based on NRF in Fig. 6 embodiment one;

The computer debugging interface module circuit schematic diagram of the remote controlled SOE measuring signal generator based on NRF in Fig. 7 embodiment one;

The telepilot composition frame chart mated with the remote controlled SOE measuring signal generator based on NRF in Fig. 8 embodiment one;

The rocking bar key-press module schematic circuit diagram of the telepilot mated with the remote controlled SOE measuring signal generator based on NRF in Fig. 9 embodiment one;

2nd power transfer module schematic circuit diagram of the telepilot mated with the remote controlled SOE measuring signal generator based on NRF in Figure 10 embodiment one;

The remote controlled SOE measuring signal generator programflow chart based on NRF in Figure 11 embodiment one.

[embodiment]

In order to make the technical scheme of this patent and technique effect clearly, below in conjunction with drawings and Examples, specific implementation of the patent mode is described in detail.

Embodiment one:

Such as Fig. 1, the remote controlled SOE measuring signal generator based on NRF in the present embodiment, comprises the first control module, first display module, key-press module, crystal oscillator, first power transfer module, a NRF wireless module, isolation drive output module and computer debugging interface module.

First display module, for display parameter and status information, its input terminus connects the first control module. First display module adopts Liquid Crystal Module of the prior art, and model is dragon Qiu's 0.96 cun of Liquid Crystal Module, and its display effect is clear attractive in appearance.

Key-press module, for the input of control information, its output terminal connects the first control module. Schematic circuit diagram, such as Fig. 2, have 4 buttons, when different key is pressed, represent the input of different steering order.

Crystal oscillator, for generation of high-resolution low voltage experiment waveform signal, its input terminus connects the first control module. Schematic circuit diagram such as Fig. 3,

First power transfer module, becomes the voltage required for other modules by DC power conversion, and its output terminal connects the supply pin of other modules, and it inputs termination external AC/DC module. Its schematic circuit diagram are such as Fig. 4, external AC/DC module exports 5V and 3.3V direct current through 5V and 3.3V Voltage stabilizing module after 220V alternating-current is transformed into 24V electricity, battery is charged after exporting by 24V and 3.3V direct current, and switch S W-DPDT can cut off the galvanic output of 24V and 5V;5V Voltage stabilizing module adopts the unicircuit of LM7805 model, and 3.3V Voltage stabilizing module adopts the unicircuit of AMS1117-3.3, and VCC3.3V is the working power of other modules. Rechargeable cell uses as standby power supply.

One NRF wireless module, for receiving outside radiofrequency signal, it is connected with the first control module. Schematic circuit diagram, such as Fig. 5, adopt Nordic company model to be the unicircuit of 24L01.

Isolation drive output module, for exporting after output signal isolation and driving, its input terminus connects the first control module again. Having 5 tunnels to export, Fig. 6 is the schematic circuit diagram on a wherein road, adopts optocoupler 6N137 to realize isolation, and N-channel MOS pipe adds pull-up resistor driver output and does precision test waveform signal (0V or 24V).

Computer debugging interface module, connects for the remote controlled SOE measuring signal generator based on NRF in the present embodiment and computer, carries out application function debugging, is connected with the first control module, carries out data exchange. Schematic circuit diagram, such as Fig. 7, adopt standard USB interface.

First control module, according to the input information of key-press module and/or a NRF wireless module, and the crystal oscillator cooperation high-resolution test waveform of generation, the output of control isolation drive output module; On the first display module, show its working order simultaneously. It adopts model to be the unicircuit of STM32F103ZE.

Such as Fig. 8, the telepilot mated based on the remote controlled SOE measuring signal generator of NRF with the present embodiment, comprises the 2nd control module, 2nd display module, rocking bar key-press module, the 2nd power transfer module, the 2nd NRF wireless module and the 2nd computer debugging interface module.

2nd display module, its effect is identical with the first display module.

Rocking bar key-press module, for controlling to export the input of test waveform parameter, its output terminal connects the 2nd control module. Schematic circuit diagram are such as Fig. 9.

2nd power transfer module, its effect is identical with the first power transfer module, and its output terminal connects the supply pin of other modules. Schematic circuit diagram, such as Figure 10, adopt the Voltage stabilizing module of model LM1117 that cell voltage converts to 3.3V direct voltage output.

2nd NRF wireless module, for outside emitting radio frequency signal, it is connected with the 2nd control module. Schematic circuit diagram are identical with a NRF wireless module.

2nd computer debugging interface module, connects for the telepilot in the present embodiment and computer, carries out application function debugging, be connected with the 2nd control module, carry out data exchange. Adopt standard serial port circuit, such as RS232 interface circuit.

2nd control module, for the input according to rocking bar key-press module, control the 2nd NRF wireless module exports corresponding radio frequency command signal, and it adopts model to be the unicircuit of STC15L412AD.

The remote controlled SOE measuring signal generator working process based on NRF in the present embodiment is as follows: this signal generator adopts 220V alternating-current to be that complete machine is powered, and turns direct current module through exchange and produces 24V direct supply. A part for 24V direct supply produces 5V and 3.3V power supply through DC-DC (DC/DC) module, to other module for power supply. First control module machine is by judging whether to receive radio frequency signal or by key information, determine whether low pressure (3.3-3.6V) the test waveform signal triggering inner 32 senior timers and high precision external crystal-controlled oscillation generation resolving power≤1ms, then by the Phototube Coupling of high-speed transitions opto-coupler chip, pull-up resistor driver output high precision measurement waveform signal (0V or 24V) is added with N-type MOS pipe.

The working process of the telepilot mated with this signal generator is as follows: adopt low dc voltage battery to power, produce 3.3V power supply through DC voltage-stabilizing chip and supply other module for power supply, the analog voltage of rocking bar potentiometer is collected by the AD of inner 8 precision of the 2nd control module, can judge to draw the pattern that arranges accordingly in conjunction with button, and by the 2nd NRF wireless module, configuration information is sent to signal generation apparatus so that it is complete the output of corresponding test waveform signal.

The remote controlled SOE measuring signal generator programflow chart based on NRF in the present embodiment is as shown in figure 11. First system is carried out initialize. After system boot, can automatically the last use scheme before power-off is read scheme by default from storer, enter the coupling work of a NRF wireless module afterwards, match successfully laggard enter major cycle. In major cycle, first judging whether to receive the order of detection the one NRF wireless module or key-press module, detect the triggering mode that whether changes, the triggering time etc. order. After trigger command being detected, export test waveform signal, show correlation behavior at liquid crystal display, return to the starting position of major cycle afterwards.

The foregoing is only the preferred embodiment of this patent, be not limited to this patent, for a person skilled in the art, this patent can have various modifications and variations. Within all spirit at this patent and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within the protection domain of this patent.

Claims

1. based on the remote controlled SOE measuring signal generator of NRF, it is characterised in that: it comprises crystal oscillator, a NRF wireless module, isolation drive output module and the first control module;

Crystal oscillator, for generation of high-resolution low voltage experiment waveform signal, its output terminal connects the first control module;

One NRF wireless module, for receiving outside radiofrequency signal, it is connected with the first control module;

Isolation drive output module, for exporting after test signal isolation and driving, its input terminus connects the first control module again;

First control module, according to the input information of a NRF wireless module, coordinates with crystal oscillator and produces high-resolution test waveform, and export corresponding test waveform by isolation drive output module.

2. as claimed in claim 1 based on the remote controlled SOE measuring signal generator of NRF, it is characterised in that: it also comprises key-press module;

Key-press module, for the input of control information, its output terminal connects the first control module;

Described first control module, also according to the input of key-press module, produces high-resolution test waveform, and exports corresponding test waveform by isolation drive output module.

3. as claimed in claim 1 based on the remote controlled SOE measuring signal generator of NRF, it is characterized in that: the oscillation frequency of described crystal oscillator is 32.768KHz, having 32 timers in described first control module, described first control module can produce the low voltage experiment waveform signal of resolving power≤1ms.