CN2394211Y

CN2394211Y - Intellectual temperature difference sensor

Info

Publication number: CN2394211Y
Application number: CN 99243608
Authority: CN
Inventors: 李树山
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-08-23
Filing date: 1999-08-23
Publication date: 2000-08-30
Anticipated expiration: 2009-08-23

Abstract

The utility model relates to an intellectual temperature difference sensor which comprises a microcomputer processor, a temperature sensor, a temperature difference setting button, a liquid crystal display and a fire prevention alarm, wherein the temperature sensor, the temperature difference setting button, the liquid crystal display and the fire prevention alarm are connected with the microcomputer processor which at least comprises a timer, a first comparator and a second comparator. The temperature difference setting button is used for setting the temperature difference values of rise and fall, and then is respectively combined with sensed temperature values when in setting. The two comparators make two combined signals compared with a real-time temperature sensing signal, and the alarm is triggered and the function of automatic temperature resetting is completed when the sensed environment temperature is higher or lower than the combined values, namely that the combined temperature values in the process of comparison are automatically corrected.

Description

Intelligent temperature difference inductor

The utility model relates to a kind of temperature sensor, relates to a kind of intelligent temperature difference inductor or rather.

Along with the progress of society, also driven the technicalization and the industrialization of all trades and professions, the rising that must cause the production environment temperature is produced in development and expansion, and if this high temperature production environment damage effect of ignorance, Yin Wendu raises and leads to fire most probably.Other has some factories that produce specialities, as the factory of integrated circuit (IC) chip, the manufacturing plant of the high-accuracy product of high-tech etc., since very responsive to the difference variation requirement of production environment, just careless slightly can bringing about great losses to factory.

In recent years, almost in the kitchen of every household the combustion gas tool is housed all, as gas kitchen ranges, gas heater etc., if individual misoperation or because of other reason, the situation that causes the kitchen to catch fire also is that generation is often arranged, if light near article because of combustion gas tool environment temperature is too high, can find early to exempt a fire, otherwise, the lives and properties of entail dangers to self not only, resident family around also may involving threatens the autre vie property.

In sum, a kind of temperature difference inductor if can develop, when the temperature of responding to surpasses or is lower than reference temperature, just can trigger a fire protection warning controller, then start fire plant or send the sound, remind the operator to note temperature variation even timely Piao's burning things which may cause a fire disaster that goes out, can effectively avoid Yin Wendu too high and cause disaster.

The purpose of this utility model is a kind of intelligent temperature difference inductor of design; this intelligent temperature difference inductor has alarm function, but the design temperature difference, when surpassing or being lower than the temperature that sets; just can send warning signal bulletin temperature anomaly or startup fire fighting device.

The purpose of this utility model is achieved in that a kind of intelligent temperature difference inductor, comprise temperature sensor, arithmetic and control unit and LCD, it is characterized in that: described arithmetic and control unit comprises micro processor and the temperature difference setting button that is connected with micro processor, and described temperature sensor and LCD are connected with micro processor respectively; Also include fire alarm apparatus, be connected with described micro processor.

Described micro processor includes first comparer and second comparer at least, the input of one input end of first, second comparer by the temperature difference set ascending temperature difference that button sets and decline temperature gap more respectively with the number of combinations value signal of setting at that time by the temperature value of temperature sensor senses, another input end input of first, second comparer is by the Current Temperatures value signal of temperature sensor senses.

Described fire alarm apparatus is a buzzer circuit and a circuit of LED.

Intelligent temperature difference inductor of the present utility model, connect to form by display, setting button, temperature sensor and micro processor, by the environment temperature around the temperature sensor senses, and the sensing temperature value is presented on the display via the computing of micro processor; Set ascending temperature difference and decline temperature difference by setting button, and with the two temperatures difference respectively with set the ambient temperature value surveyed at that time and make up, numerical signal after this combination is reached comparer, the Temperature numerical signal measured with temperature sensor thereafter compares mutually, if the environment temperature of actual measurement surpasses or is lower than temperature after combination, then output signal is sent to fire-fighting warning device and control device through control circuit, to start fire plant and to send the sound.Timer in the intelligent temperature difference inductor of the utility model, can periodically in setting-up time, start automatic function of reset, again temperature sensor is the measured current temperature data and the numerical value of the aforementioned temperature difference that sets make up, and compare with the numerical value that temperature sensor thereafter records, so just can make temperature difference inductor of the present utility model along with the variation of each phase temperature of environment the combination numerical value of Tc difference and environment temperature automatically, in the i.e. correction warning, lower-limit temperature value, and fire protection warning function under varying environment temperature and the uniform temp difference condition is provided.

Further specify technology of the present utility model below in conjunction with embodiment and accompanying drawing.

Fig. 1 is the surface structure synoptic diagram of the intelligent temperature difference inductor of the utility model

Fig. 2 is the internal circuit configuration figure of the intelligent temperature difference inductor of the utility model

Fig. 3 is the structure and the principle of work block diagram of the intelligent temperature difference inductor of the utility model

Referring to Fig. 1, the surface structure of the intelligent temperature difference inductor of the utility model comprises housing 1, LCD display 2 and sets button 3.

Referring to Fig. 2 and Fig. 3, the intelligent temperature difference inductor of the utility model mainly comprises LCD display 2, sets button 3, temperature sensor 4 and micro processor 5.Timer 51 shown in Fig. 3, first, second comparer 52,52 ' and the function of micro processor 5 finish by a large scale integrated chip GP-8651 among Fig. 2.The I/O end 10A1 (57 pin) of large scale integrated chip GP-8651 connects temperature sensor 4 (not shown among Fig. 2) among Fig. 2, another output terminal BZB (64 pin) connects the fire alarm apparatus of being made up of hummer BZ1 etc. 6, connect and compose optical alarm circuit by light emitting diode D1, D2 etc., receive alerting signal by an output terminal LIGHT (62 pin) output of GP-8651.Ascending temperature differ from 31 and decline temperature difference 32 set by the switch among Fig. 23.S1 to the S23 end of large scale integrated chip GP-8651 connects LCD display 2.Because control device 8 all belongs to fire-fighting alarm, protective device with control circuit 7, so non-the purpose of this utility model place is the enforcement circuit of not shown control device 8 and control circuit 7 among Fig. 2.

Referring to Fig. 3, by the environment temperature 9 around the intelligent temperature difference inductor of temperature sensor 4 sensings, by timer 51 at regular intervals as 8 seconds this environment temperature 9 was taken a sample, and be shown on the LCD display 2 via the computing of micro processor 5 numerical value with this environment temperature 9.Can set ascending temperature and differ from 31 and decline temperature difference 32 by setting button 3, and with ascending temperature differ from 31 and decline temperature difference 32 made up with the environment temperature of setting at that time by temperature sensor 4 sensings 9 respectively, and the numerical value after will making up (i.e. the bound temperature value of She Dinging) is delivered to comparer 52,52 ' one end, with comparer 52, on 52 ' another input end, through micro processor 5 computings, after setting operation is finished by temperature sensor 4 measured the real time environment Temperature numerical compare mutually, if measured environment temperature surpasses or is lower than numerical value after the aforementioned combination, promptly to fire alarm apparatus 6, control device 8 and control circuit 7 output control signals are sent sound and light alarm or are started fire plant work etc.

Timer 51 of the present utility model also can periodically start function of reset by the time of setting, the numerical value that is about to the environment temperature 9 that recorded again by temperature sensor 4 makes up with the numerical value of ascending temperature difference that sets and decline temperature difference respectively, promptly redefine the bound temperature value of alarm, and can make intelligent temperature difference inductor of the present utility model can with in season, one day different constantly and temperature variation sooner or later and the numerical value of Tc difference and environment temperature 9 automatically, and can be in the varying environment temperature but all can realize warning under the condition of same temperature difference.

Intelligent temperature difference inductor of the present utility model can be used as the warning horn of general house life, or as the control device of fire plant in the factory.Can be installed in the kitchen or in the bathroom, in the time that indoor temperature is being set, slowly or hastily rise, descend, surpass or when being lower than the upper limit value and lower limit value that sets, automatically send audible and visible alarm and start fire fighting equipment, to remind the user: current environment temperature has exceeded the safety margin that sets, need take measures to avoid loss.

Intelligent temperature difference inductor of the present utility model, light and handy practical, can hang and can stand, and carry when being convenient to go out, if adopt battery to make power source, can use continuously more than 1 year approximately.

Claims

1. intelligent temperature difference inductor, comprise temperature sensor, arithmetic and control unit and LCD, it is characterized in that: described arithmetic and control unit comprises micro processor and the temperature difference setting button that is connected with micro processor, and described temperature sensor and LCD are connected with micro processor respectively; Also include fire alarm apparatus, be connected with described micro processor.

2. intelligent temperature difference inductor according to claim 1, it is characterized in that: described micro processor includes first comparer and second comparer at least, the input of one input end of first, second comparer by the temperature difference set ascending temperature difference that button sets and decline temperature gap more respectively with the number of combinations value signal of setting at that time by the temperature value of temperature sensor senses, another input end input of first, second comparer is by the Current Temperatures value signal of temperature sensor senses.

3. intelligent temperature difference inductor according to claim 1 is characterized in that: described fire alarm apparatus is a buzzer circuit and a circuit of LED.