CN215178193U

CN215178193U - Remote temperature monitoring alarm device

Info

Publication number: CN215178193U
Application number: CN202022761460.XU
Authority: CN
Inventors: 黄洵
Original assignee: Jiangxi Future Technology Development Co ltd
Current assignee: Jiangxi Future Technology Development Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-12-14
Anticipated expiration: 2030-11-25

Abstract

A remote temperature monitoring alarm device is prepared as fixing ultrasonic emitter on one side of tested region, connecting driving module to ultrasonic emitter, arranging multiple reflection plates at two sides of tested region at intervals, fixing ultrasonic receiver on one side of tested region, connecting calculation module to ultrasonic receiver, aligning ultrasonic emitter to reflection plate at end and aligning ultrasonic receiver to reflection plate at tail, utilizing sound wave temperature measurement technique to carry out remote monitoring on ambient air of tested region in large range, utilizing gas sound velocity to depend on gas component and absolute temperature, raising ambient air temperature to increase propagation speed of ultrasonic emitter and making phase of ultrasonic wave received by ultrasonic receiver to be deviated under condition of not changing space between multiple reflection plates then determining whether to exceed critical value and selectively releasing sound wave through comparison and analysis of calculation module, The optical and network alarm signal has the advantages of high precision, wide range, fast response, safety and stability.

Description

Remote temperature monitoring alarm device

Technical Field

The utility model belongs to the technical field of the security protection equipment, concretely relates to remote temperature monitoring alarm device.

Background

The temperature alarm is an instrument for detecting the outside temperature in real time by using a temperature sensor, and when the detected temperature exceeds a preset critical value, the temperature alarm gives an alarm to the outside in a light, sound or network mode and the like. In the existing temperature detection alarm device, in order to improve the detection range in the area, a non-contact temperature measurement technology is often adopted, generally an infrared detector or an optical pyrometer is used for realizing the detection function, and the device has the advantages of quick response time, non-contact, safe use, long service life and the like, so that the device is widely applied to real-time detection alarm of production enterprises of metallurgy, chemical engineering, machinery and the like. However, the traditional optical and infrared non-contact temperature detection technology is limited to one point on the surface area of a detected object, cannot accurately measure the change of the environment and air temperature caused by a fire accident, and is easily interfered by the environment temperature; meanwhile, if the surface reflectivity of the measured object is different, such as bright surface or metal polished mechanical equipment and building components, the temperature measurement reading is greatly influenced, so that the temperature alarm has the conditions of false alarm, missing alarm and the like, and serious consequences are caused. Therefore, the existing temperature alarm is limited by factors such as area, material, environment and the like, and an effective technical scheme needs to be implemented and improved.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art, the utility model provides a remote temperature monitoring alarm device for to the monitoring alarm operation on a large scale of ambient temperature realization, avoid receiving the interference of all kinds of factors simultaneously.

The utility model discloses a following technical scheme implements: a remote temperature monitoring and alarming device comprises an ultrasonic transmitter, a driving module, a plurality of reflecting plates, an ultrasonic receiver and a calculating module. The ultrasonic transmitter comprises a probe for generating ultrasonic waves and is fixed on one side edge of a detected area, and the driving module is used for generating a trigger signal with standard frequency and is connected with the ultrasonic transmitter so as to drive the ultrasonic transmitter to generate periodic directional ultrasonic waves; the reflecting plates are made of ultrasonic reflecting materials, and the reflecting plates are respectively fixed on the two side edges of the tested area in an equidistant and spaced arrangement mode; the ultrasonic receiver comprises a probe for receiving ultrasonic waves and is fixed on one side edge of a detected area, and the calculation module is connected with the ultrasonic receiver and can be used for calculating the phase difference between the measurement frequency of the ultrasonic waves received by the ultrasonic receiver and the standard frequency; the transmitting end of the ultrasonic transmitter is aligned to the reflecting plate at one end, and the receiving end of the ultrasonic receiver is aligned to the reflecting plate at the tail, so that the ultrasonic wave generated by the ultrasonic transmitter is reflected by the reflecting plates and then is received by the ultrasonic receiver.

Further, a signal lamp and a buzzer are arranged outside the calculation module, and when the phase difference between the measurement frequency of the ultrasonic wave received by the ultrasonic receiver and the standard frequency of the ultrasonic wave transmitted by the ultrasonic transmitter exceeds a critical value, the calculation and the comparison of the calculation module trigger a switch signal and start the signal lamp and the buzzer to work, so that the signal lamp and the buzzer respectively generate light and sound.

Furthermore, a mobile phone card is arranged in the calculation module, and when the phase difference between the measurement frequency of the ultrasonic wave received by the ultrasonic receiver and the standard frequency of the ultrasonic wave transmitted by the ultrasonic transmitter exceeds a critical value, the calculation and the comparison of the calculation module trigger a switch signal and send a short message and telephone information to a mobile terminal of a specific person through the mobile phone card.

Further, the calculating module stores frequency data which is the same as the standard frequency generated by the driving module.

Furthermore, the ultrasonic emitter, the ultrasonic receiver and the plurality of reflecting plates are all arranged in the same standard plane, and the distance between the standard plane and the ground is more than or equal to 2 m.

The utility model has the advantages that:

1. the utility model discloses utilize sound wave temperature measurement technique to carry out remote monitoring on a large scale to the regional ambient air of quilt survey, because the gaseous sound velocity depends on gas composition and absolute temperature, when ambient air temperature risees, the propagation velocity of the produced ultrasonic wave of ultrasonic transmitter increases, under the unchangeable condition of a plurality of reflecting plate intervals, make the ultrasonic wave phase place that ultrasonic receiver received the deviation, then through the comparative analysis of calculation module, confirm whether surpass the critical value and selectively release sound, light and network alarm signal, compare in current optics, the temperature measurement alarm device of modes such as infrared, the utility model discloses a detection range no longer is subject to by the regional surperficial a bit of quilt survey to can carry out real-time supervision to the gaseous average temperature everywhere in the region, have the precision height, the wide range, the response is fast, the advantage of safety and stability.

2. The utility model discloses a set up the main device in the region more than 2 meters above ground, utilize the characteristic direct detection ambient gas temperature of sound wave temperature measurement, personnel or the equipment medium in avoiding the building cause the interference to measuring the reading, utilize the higher characteristic of flame top area temperature simultaneously, in time monitor and trigger the warning to the condition of a fire, owing to can the direct measurement gas temperature, the utility model discloses have better response characteristic to the naked light, and do not receive the restriction of environment and equipment factor, very be favorable to using the workplace at the fire of forbidding, have higher adaptability and practical value.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a front view of the present invention;

fig. 3 is a schematic diagram of the path of the ultrasonic wave in the present invention.

In the figure: the ultrasonic monitoring system comprises 1-an ultrasonic transmitter, 2-a driving module, 3-a plurality of reflecting plates, 4-an ultrasonic receiver, 5-a calculating module, 5 a-a signal lamp and 5 b-a buzzer.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples.

As shown in fig. 1-2, a remote temperature monitoring and alarming device includes an ultrasonic transmitter 1, a driving module 2, a plurality of reflecting plates 3, an ultrasonic receiver 4, and a calculating module 5. The ultrasonic transmitter, the ultrasonic receiver and the plurality of reflecting plates are all arranged in the same standard plane, and the distance between the standard plane and the ground is more than or equal to 2 m; the ultrasonic transmitter 1 comprises a probe for generating ultrasonic waves and is fixed on one side edge of a detected area, and the driving module 2 is used for generating a trigger signal with standard frequency and is connected with the ultrasonic transmitter 1, so that the ultrasonic transmitter 1 is driven to generate periodic directional ultrasonic waves; the reflecting plates 3 are made of ultrasonic reflecting materials, and the reflecting plates 3 are respectively fixed on the two side edges of the tested area in an equidistant arrangement mode; the ultrasonic receiver 4 comprises a probe for receiving ultrasonic waves and is fixed on one side edge of a detected area, and the calculating module 5 is connected with the ultrasonic receiver 4 and can be used for calculating the phase difference between the measuring frequency of the ultrasonic waves received by the ultrasonic receiver 5 and the standard frequency; the transmitting end of the ultrasonic transmitter 1 is aligned with the reflecting plate 3 at one end, and the receiving end of the ultrasonic receiver 4 is aligned with the reflecting plate 3 at the tail, so that the ultrasonic wave generated by the ultrasonic transmitter 1 is reflected by the reflecting plates 3 and then received by the ultrasonic receiver 4; the outside of the computing module 5 is provided with a signal lamp 5a and a buzzer 5b, the inside of the computing module 5 is also provided with a mobile phone card, and meanwhile, the computing module 5 also stores frequency data which is the same as the standard frequency generated by the driving module 2.

As shown in fig. 3, the ultrasonic transmitter 1 generates ultrasonic waves with standard frequency, which are reflected by a plurality of reflecting plates 3 and received by the ultrasonic receiver 4, thereby forming a multi-line ultrasonic path arranged back and forth, and when an open fire occurs in the multi-line ultrasonic path or in an equipment area below the path (the direction is shown in fig. 2), since the propagation speed of the sound waves in a gas medium is a function of the gas composition and absolute temperature, the relation can be expressed as:

wherein: c is the acoustic wave propagation velocity and T is the gas absolute temperature.

Therefore, the propagation speed of the ultrasonic wave is increased due to high temperature caused by rising hot air generated by open fire, so that the phase difference between the measuring frequency of the ultrasonic wave received by the ultrasonic receiver 4 and the standard frequency of the original data is reduced, when the phase difference between the measuring frequency and the standard frequency is smaller than a preset critical value, the calculation and comparison of the calculation module 5 are carried out, so that a switching signal is triggered, the signal lamp 5a is started to generate light flicker, the buzzer 5b is started to generate alarm sound, and in addition, short messages and telephone information are generated to the mobile phone of an attendant through the mobile phone card arranged in the calculation module 5, so that the remote temperature measurement alarm work is completed.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and are not intended to limit the present invention in any form, so that any person skilled in the art can make modifications and equivalent changes within the scope of the claims of the present invention.

Claims

1. The utility model provides a remote temperature monitoring alarm device, includes ultrasonic transmitter, drive module, a plurality of reflecting plates, ultrasonic receiver, calculation module, its characterized in that: the ultrasonic transmitter comprises a probe for generating ultrasonic waves and is fixed on one side edge of a detected area, the driving module is used for generating a trigger signal with standard frequency and is connected with the ultrasonic transmitter so as to drive the ultrasonic transmitter to generate periodic directional ultrasonic waves, the reflecting plates are made of ultrasonic reflecting materials, the reflecting plates are respectively fixed on the two side edges of the detected area in an equidistant interval arrangement mode, the ultrasonic receiver comprises a probe for receiving the ultrasonic waves and is fixed on one side edge of the detected area, and the calculating module is connected with the ultrasonic receiver and can be used for calculating the phase difference between the measuring frequency of the ultrasonic waves received by the ultrasonic receiver and the standard frequency; the transmitting end of the ultrasonic transmitter is aligned to the reflecting plate at one end, and the receiving end of the ultrasonic receiver is aligned to the reflecting plate at the tail, so that the ultrasonic wave generated by the ultrasonic transmitter is reflected by the reflecting plates and then is received by the ultrasonic receiver.

2. A remote temperature monitoring alarm unit as claimed in claim 1 wherein: and when the phase difference between the measuring frequency of the ultrasonic wave received by the ultrasonic receiver and the standard frequency of the ultrasonic wave transmitted by the ultrasonic transmitter exceeds a critical value, the calculation and comparison of the calculation module trigger a switch signal and start the signal lamp and the buzzer to work, so that the signal lamp and the buzzer respectively generate light and sound.

3. A remote temperature monitoring alarm unit as claimed in claim 1 wherein: and a mobile phone card is also arranged in the computing module.

4. A remote temperature monitoring alarm unit as claimed in claim 1 wherein: the calculating module stores frequency data which is the same as the standard frequency generated by the driving module.

5. A remote temperature monitoring alarm unit as claimed in claim 1 wherein: the ultrasonic transmitter, the ultrasonic receiver and the plurality of reflecting plates are all arranged in a plane with a distance larger than or equal to 2m from the ground.