CN211553176U

CN211553176U - A empty early warning device for test equipment

Info

Publication number: CN211553176U
Application number: CN202020159579.7U
Authority: CN
Inventors: 刘晓蒙; 张怀锁; 卞爱民
Original assignee: Shanghai Institute of Process Automation Instrumentation
Current assignee: Shanghai Institute of Process Automation Instrumentation
Priority date: 2020-02-10
Filing date: 2020-02-10
Publication date: 2020-09-22
Anticipated expiration: 2030-02-10

Abstract

The utility model relates to an empty early warning device for test equipment emptys early warning device and installs at the test equipment top, and attitude angle sensor gathers test equipment's three-dimensional acceleration and three-dimensional angle data in real time and sends to the singlechip, detects test equipment vibration condition and slope condition, and singlechip processing data back output test equipment emptys possible control signal, and audible-visual annunciator newspaper and output relay are sent into to singlechip output control signal, and audible-visual annunciator reports to the police, and output relay exports early warning switch signal. The device monitors the posture of the test equipment in real time, warns the toppling of the test equipment and outputs an alarm signal to the outside, thereby ensuring the safe use of the mapping test equipment. The dumping early warning device can be used for a standard force measuring machine and is also suitable for various test equipment with high height and heavy weight.

Description

A empty early warning device for test equipment

Technical Field

The utility model relates to a safety device, in particular to an empty early warning device for test equipment.

Background

The standard force measuring machine is a precise force value metering device, a measured sensor is placed in the standard force measuring machine for mechanical calibration, and the precision of the applied measuring force is superior to 0.05%. The standard force measuring machine with large force value is heavy in weight and high in height, and like a 100MN standard force measuring machine developed by Shanghai Industrial automation instrument research institute, the standard force measuring machine is about 400 tons in self weight and 18 meters in height. In order to achieve high-precision measurement force, the deformation of the standard force measuring machine needs to be small, namely the horizontal cross section area of the standard force measuring machine needs to be small, and the length and the width of a mounting base of the 100MN standard force measuring machine are about 2.5 meters and 3 meters respectively.

The weight of the standard force measuring machine is heavy, the appearance structure is long and thin, the gravity center is close to the upper part, and in order to ensure the safe use of the standard force measuring machine, the posture of the force measuring machine needs to be monitored in real time to prevent the force measuring machine from toppling over.

Disclosure of Invention

The utility model discloses a problem to the safe handling of standard force measuring machine has provided a empty early warning device for test equipment, and real-time supervision test equipment machine gesture is installed at test equipment's top, ensures test equipment's safe handling.

The technical scheme of the utility model is that: the utility model provides a topple over early warning device for test equipment, it installs at the test equipment top to topple over early warning device, it includes the power module to topple over early warning device, gesture angle sensor, the singlechip, audible-visual annunciator and output relay, gesture angle sensor gathers test equipment's three-dimensional acceleration and three-dimensional angle data in real time and sends to the singlechip, output test equipment topples over possible control signal after the singlechip processed data, singlechip output control signal sends into audible-visual annunciator and output relay, audible-visual annunciator sends out sound and light alarm signal, output relay output early warning switching signal, exchange 220V input power module, power module exports for each device power supply of toppling over early warning device.

A empty early warning device for test equipment, power module contain transformer, rectifier circuit, rechargeable lithium cell, battery charging circuit and stabiliser, exchange 220V and loop through transformer, rectifier circuit and step down and export low voltage direct current after the alternating current-direct current conversion, low voltage direct current is for lithium cell charging, lithium cell both ends output DC12V, lithium cell both ends output through the stabiliser output DC3.3V, power module output DC12V promptly and DC3.3V two sets of direct currents.

The beneficial effects of the utility model reside in that: the utility model is used for test equipment empty early warning device, real-time supervision test equipment's gesture, empting of early warning test equipment, external output alarm signal to guarantee the safe handling of mark survey test equipment. The dumping early warning device can be used for a standard force measuring machine and is also suitable for various test equipment with high height and heavy weight.

Drawings

Fig. 1 is the utility model discloses an empty early warning device structure circuit diagram for test equipment.

Detailed Description

The dumping early warning device for the test equipment is mounted at the top of the test equipment and comprises a power module, an attitude angle sensor, a single chip microcomputer, an audible and visual alarm and an output relay, wherein the dumping early warning device is shown in figure 1.

The power module comprises a transformer, a rectifying circuit, a rechargeable lithium battery, a battery charging circuit and a voltage stabilizer. When an external alternating current 220V power supply is normal, the alternating current power supply is subjected to voltage reduction through a transformer and then converted into direct current through a rectifying circuit to charge a lithium battery, the two ends of the lithium battery output DC12V, and the two ends of the lithium battery output DC3.3V through a voltage stabilizer, namely a power supply module outputs two groups of direct currents, namely DC12V and DC 3.3V; when the external alternating current 220V power supply fails, the internal lithium battery provides the required DC12V and DC3.3V power supply, and the lithium battery can enable the dumping early-warning device to work for 24 hours when the internal lithium battery works in a standby real-time monitoring state. The output voltage DC12V supplies power to the audible and visual alarm and the output relay, and the output voltage DC3.3V supplies power to the angle sensor and the singlechip.

The test equipment is a standard force measuring machine, the attitude angle sensor samples the three-dimensional acceleration and the three-dimensional angle of the standard force measuring machine, and detected data are transmitted to the single chip microcomputer. The sampling frequency is 500Hz, and the real-time performance of monitoring is ensured. The acceleration and angle data sampled by the attitude angle sensor have no memory.

The single chip microcomputer processes data received from the attitude sensor, the acceleration data detect the vibration condition of the standard force measuring machine, and the angle data detect the inclination condition of the standard force measuring machine. After the data is filtered in the single chip microcomputer, the data is compared with a set threshold value, the single chip microcomputer exceeding the threshold value judges that the force measuring machine is likely to topple over, a control signal is output to the audible and visual alarm and the output relay, the audible and visual alarm gives out a sound and a light alarm signal, and the output relay outputs a switch signal for outputting an early warning signal.

The audible and visual alarm and the output relay are controlled by the single chip microcomputer to output signals to the outside to remind workers of early warning of toppling of the standard force measuring machine, and the output relay outputs early warning signals to inform the background control system through the contact.

Claims

1. The utility model provides a empty early warning device for test equipment, a serial communication port, empty early warning device and install at the test equipment top, it includes the power module to empty early warning device, gesture angle sensor, a single-chip microcomputer, audible-visual annunciator and output relay, gesture angle sensor gathers test equipment's three-dimensional acceleration and three-dimensional angle data in real time and sends to the singlechip, output test equipment emptys possible control signal after the singlechip processed data, singlechip output control signal sends into audible-visual annunciator and output relay, audible-visual annunciator sends sound and light alarm signal, output relay output early warning switch signal, exchange 220V input power module, power module exports and supplies power for each device of the early warning device that empties.

2. The toppling early warning device for the test equipment as claimed in claim 1, wherein the power supply module comprises a transformer, a rectifying circuit, a rechargeable lithium battery, a battery charging circuit and a voltage stabilizer, wherein 220V alternating current is subjected to voltage reduction and alternating current-direct current conversion sequentially through the transformer and the rectifying circuit, and then low-voltage direct current is output to charge the lithium battery, two ends of the lithium battery output DC12V, and two ends of the lithium battery output DC3.3V through the voltage stabilizer, namely the power supply module outputs two groups of direct currents of DC12V and DC 3.3V.