CN201740849U

CN201740849U - Safety protective appliance testing device

Info

Publication number: CN201740849U
Application number: CN2010202834359U
Authority: CN
Inventors: 李力华; 熊水发; 周向东
Original assignee: JIANGXI BADA ELECTRONICS CO Ltd
Current assignee: JIANGXI BADA ELECTRONICS CO Ltd
Priority date: 2010-08-03
Filing date: 2010-08-03
Publication date: 2011-02-09
Anticipated expiration: 2020-08-03

Abstract

The utility model provides a safety protective appliance testing device comprising a voltage source, a booster, a single chip microcomputer, a testing system, a DSP (data signal processor), a remote control appliance, a self-diagnosis protective appliance and an infrared protective appliance. As for the safety protective appliance testing device, a PWMS (pulse-width modulation sine wave) without a node is adopted for regulating voltage, thus having large voltage regulating range and high precision; the DSP is adopted for processing data, thus achieving high speed; the wireless remote control is adopted, thus having high automation degree; and the safety protective appliance testing device is provided with the self-diagnosis protective appliance and the infrared protective appliance, thus being safe and reliable.

Description

The safety protective tools test unit

Technical field the utility model relates to a kind of test unit, particularly a kind of safety protective tools test unit.

The present safety protective tools test unit of background technology mainly comprises voltage source, stepup transformer and test macro, what its pressure regulation lifting was adopted is step motor control, contact-carrying is regulated, manual operation, do not meet the relevant rules of country, what adopted the display part is pointer voltage, reometer indication, the manual record data, and automaticity and precision are all lower.

The summary of the invention the purpose of this utility model is to overcome above-mentioned deficiency and a kind of safety protective tools test unit is provided.

For realizing the purpose of this utility model; the technical solution of the utility model is; a kind of safety protective tools test unit; comprise voltage source; stepup transformer; single-chip microcomputer; test macro; it is characterized in that: it is equipped with a remote control equipment; a self diagnosis protection equipment; an infrared acquisition protection equipment and a DSP; described voltage source adopts the Sine Pulse Width Modulation power supply; remote control equipment is made up of PC and two wireless transceivers; PC is connected with a wireless transceiver; another wireless transceiver is connected with single-chip microcomputer; single-chip microcomputer links to each other with DSP by dual port RAM; DSP is connected with DAC; DAC is connected with the SPWM power supply; the SPWM power supply is connected with the power transformation device; transformer is connected with gauge tap; gauge tap is connected with stepup transformer; stepup transformer is connected with test macro; self diagnosis protection equipment is made up of comparer and gauge tap; the instrumentation amplifier weaved into output terminal in the test macro is connected with an input end pin of comparer; the numerical protection threshold value of DSP output is connected with another input end pin of comparer after the D/A conversion; comparator output terminal is connected with gauge tap; infrared acquisition protection equipment is by the infrared acquisition protector; DSP; the protection controller; gauge tap constitutes; infrared eye is connected with DSP; DSP is connected with the protection controller, and the protection controller is connected with gauge tap.

The utlity model has following advantage: what 1, the pressure regulation lifting was adopted is that PWMS does not have the node pressure regulation, and range of regulation is big, and the precision height meets the relevant rules of country; 2, with DSP carry out data processing, speed is fast, precision is high; 3, adopt wireless remote control, the automaticity height is tested safer; 4, be provided with self diagnosis protection equipment and infrared acquisition protection equipment, safe and reliable.

Description of drawings Fig. 1 is the utility model block scheme.

Embodiment is further elaborated the utility model below in conjunction with Fig. 1.

As shown in Figure 1; the utility model is by voltage source; stepup transformer; single-chip microcomputer; test macro; DSP; remote control equipment; self diagnosis protection equipment and infrared acquisition protection equipment are formed; voltage source adopts the Sine Pulse Width Modulation power supply; remote control equipment is made up of PC and two wireless transceivers; PC is connected with a wireless transceiver; another wireless transceiver is connected with single-chip microcomputer; single-chip microcomputer links to each other with DSP by dual port RAM; DSP is connected with DAC; DAC is connected with the SPWM power supply; the SPWM power supply is connected with the power transformation device; transformer is connected with gauge tap; gauge tap is connected with stepup transformer; stepup transformer is connected with test macro; self diagnosis protection equipment is made up of comparer and gauge tap; the instrumentation amplifier weaved into output terminal in the test macro is connected with an input end pin of comparer; the numerical protection threshold value of DSP output is connected with another input end pin of comparer after the D/A conversion; comparator output terminal is connected with gauge tap; infrared acquisition protection equipment is by the infrared acquisition protector; DSP; the protection controller; gauge tap constitutes; infrared eye is connected with DSP; DSP is connected with the protection controller, and the protection controller is connected with gauge tap.

Antenna on the utility model wireless transceiver adopts inverse-F antenna, and not only volume is little, and transmitting range is also far away relatively, can satisfy the demand of portable set.

Principle of work of the present utility model is as follows: PC sends steering order in operation sequence, issue the test unit of far-end through wireless transceiver, the instruction that the wireless transceiver of far-end test unit will receive is sent to single-chip microcomputer after CRC check is errorless, single-chip microcomputer is compiled by the communication protocol of formulating voluntarily, decoding, DSP carries out exchanges data by dual port RAM and single-chip microcomputer, elder generation's self-diagnosable system also turns back to PC with diagnostic result by radio communication, if system is in normal operating conditions, just can begin test, DSP produces the DC voltage control PWMS power supply generation 50HZ alternating current of 0～5V by 16 DAC, through transformer, stepup transformer boosts the continuous adjustable voltage of back generation 0～50000V to test by the insulating property of test specimen, when test voltage raises gradually, its magnitude of voltage is through dividing potential drop, send DSP after sampling and the A/D conversion, its electric current is through mutual depressor, the I/V conversion, after can weaving into the instrumentation amplifier amplification, be converted to digital signal by A/D again and send DSP, DSP just can draw by the insulating property parameter of test specimen after by certain algorithm these data being handled.Punctured the damage of back for anti-by test specimen to equipment; adopted the duplicate protection measure; on the one hand DSP detects to be surpassed by the test specimen leakage current and sets when puncturing (protection) current values; sending control signal is disconnected by the control circuit gauge tap; cut off the electricity supply; protection threshold value with detected current value and setting compares on the other hand, and when by the super setting of test specimen leakage current numerical value, directly gauge tap disconnects.For guaranteeing personal security, make provision against emergencies simultaneously, adopt infrared eye that the Experimental Area is controlled,, then send and report to the police and cut off the electricity supply automatically in case there is the people to swarm into.

Claims

1. safety protective tools test unit; comprise voltage source; stepup transformer; single-chip microcomputer; test macro; it is characterized in that: it is equipped with a remote control equipment; a self diagnosis protection equipment; an infrared acquisition protection equipment and a DSP; described voltage source adopts the Sine Pulse Width Modulation power supply; remote control equipment is made up of PC and two wireless transceivers; PC is connected with a wireless transceiver; another wireless transceiver is connected with single-chip microcomputer; single-chip microcomputer links to each other with DSP by dual port RAM; DSP is connected with DAC; DAC is connected with the SPWM power supply; the SPWM power supply is connected with the power transformation device; transformer is connected with gauge tap; gauge tap is connected with stepup transformer; stepup transformer is connected with test macro; self diagnosis protection equipment is made up of comparer and gauge tap; the instrumentation amplifier weaved into output terminal in the test macro is connected with an input end pin of comparer; the numerical protection threshold value of DSP output is connected with another input end pin of comparer after the D/A conversion; comparator output terminal is connected with gauge tap; infrared acquisition protection equipment is by the infrared acquisition protector; DSP; the protection controller; gauge tap constitutes; infrared eye is connected with DSP; DSP is connected with the protection controller, and the protection controller is connected with gauge tap.

2. by the described safety protective tools test unit of claim 1, it is characterized in that: the antenna on the described wireless transceiver is an inverse-F antenna.