CN111613031A

CN111613031A - Cable type alarm system with selectable probes and application method

Info

Publication number: CN111613031A
Application number: CN202010489037.0A
Authority: CN
Inventors: 时英杰
Original assignee: Suzhou Jindi Intelligent Technology Co ltd
Current assignee: Suzhou Jindi Intelligent Technology Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2020-09-01

Abstract

A wired alarm system with selectable probes comprises a GPRS module, a storage battery, a power socket, a temperature detection probe, a humidity detection probe, a power failure detection probe, an anti-theft probe and an alarm main circuit, wherein the GPRS module is connected with the power socket; the GPRS module, the alarm main circuit, the storage battery and the power socket are arranged on a circuit board and are connected through circuit board wiring; the temperature detecting probe, the humidity detecting probe, the power failure detecting probe and the anti-theft probe are all provided with a three-core power plug which are connected through a lead, and the application method of the wired alarm system with the selectable probes comprises five steps. The invention has various split probes, can conveniently realize effective monitoring of various signals through the insertion of the corresponding probes and the host respectively, and can be replaced by a user after the probes or the host have problems, thereby realizing the convenient switching among various alarm signal detections according to the needs of the user, bringing convenience to the user, saving the use cost and being beneficial to improving the market competitiveness of manufacturers.

Description

Cable type alarm system with selectable probes and application method

Technical Field

The invention relates to the field of alarm equipment, in particular to a wired alarm system with selectable probes and an application method.

Background

The wired alarm system has the advantages of reliable operation (the probe and the host are not interfered by surrounding electromagnetic interference, and the alarm signal is generally transmitted to a remote user through a short message through a wireless mobile network in order to realize a remote transmission function) and low cost because the probe and the host realize the transmission of signals through a wire, so the wired alarm system is widely applied. At present, in the existing wired alarm system, because the interaction of the probe and the host is a whole, the whole equipment can not be normally used after one of the probe or the host breaks down, and a user can not know the point where the fault occurs and send the whole machine to repair, which brings inconvenience to the user and causes certain economic loss. The existing wired alarm system has the defects that when the probe is in use, the probe cannot be maintained by a user, maintenance personnel charge higher, the user purchases a new alarm system in addition in many times, the original system with the problems is not used, loss is brought to the user, and resources are wasted correspondingly.

Furthermore, in general, the existing wired alarm system can only realize the monitoring of one alarm signal (such as fire monitoring or anti-theft monitoring), and has the disadvantage of single function; some wired alarm systems have multiple functions of monitoring alarm signals, but in practical situations, many users only need one of the functions, that is, other functions are not applicable, and the cost of the equipment is high due to excessive functions, which brings unnecessary economic expenditure to the users. In actual conditions, in the alarm with single function, when a subsequent user needs to monitor other signals, the user can only buy the alarm system with other signal monitoring functions again to use, so that the original alarm system is disabled, and certain inconvenience and economic loss are brought to the user (for example, the user can prevent burglary originally, the subsequent monitoring part has more perfect video networking monitoring, and when the user needs to adopt the original system as the temperature and humidity monitoring requirement in the vegetable greenhouse, the alarm system with the original anti-theft function cannot be directly applied, and the user needs to purchase another humidity detection alarm system). Based on the above, the wired alarm system and the application method provided by the invention have the advantages that various probes and the host are arranged in a split type, a user can select the types of the probes according to the type required to be monitored, the probe or the host does not need to be replaced by the user after the fault occurs, the probe or the host can be replaced and maintained by himself, the damaged probe or the host only needs to be replaced, the normal probe or the host can be used continuously, the expense of the user is reduced, and convenience is brought to the user.

Disclosure of Invention

In order to overcome the defects that the prior wired alarm system is limited by the structure, the probe and the host interact into a whole, one of the probe or the host can not be normally used after a fault occurs, and a user can not maintain the integral equipment by himself, and the prior wired alarm system with one function can only realize the monitoring of one alarm signal, has single function and multiple functions, when the user only needs one function, the cost of the equipment is higher due to the inapplicable other functions and excessive functions, and unnecessary economic expenditure is brought to the user, the invention provides the multifunctional split type probe, which has multiple probes and the host with completely consistent access modes, the user can conveniently realize the effective monitoring of one signal through the insertion of the corresponding probe and the host according to the needs, and after the problem occurs to the probe or the host, the user does not need to replace the probe or the host, can replace and maintain the probe or the host by himself, only needs to replace the damaged probe or the host, and the normal probe or the host can be continuously used, so that the expense of the user is reduced, and convenience is brought to the user.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a wired alarm system with selectable probes comprises a short message module, a storage battery and a power socket, and is characterized by also comprising a temperature detection probe, a humidity detection probe, a power failure detection probe, an anti-theft probe and an alarm main circuit; the short message module, the alarm main circuit, the storage battery and the power socket are arranged on a circuit board and are electrically connected through circuit board wiring, and the circuit board is arranged in the element box and serves as a host; the positive and negative electrodes of the storage battery are respectively and electrically connected with the two ends of the power input of the main alarm circuit and the two terminals of the power socket; the signal input end of the short message module is electrically connected with the signal output end of the alarm main circuit; the signal input end of the alarm main circuit is electrically connected with the other power input end of the power socket; the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe are all provided with a three-core power plug which are electrically connected; the power input ends of the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe are respectively and electrically connected with two wiring terminals of the three-core power plug, and the signal output ends of the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe are respectively and electrically connected with the other wiring terminal of the three-core power plug; the application method of the wired alarm system with the selectable probes comprises the following steps: in the production of manufacturers, a host, a temperature detection probe, a humidity detection probe, a power failure detection probe and an anti-theft probe are produced and sold respectively; b: the temperature detection probe, the humidity detection probe, the power failure detection probe, the anti-theft probe and the host are electrically connected through a three-core power plug and a three-core power socket in an inserting way; c, a user purchases the host machine and one of the temperature detection probe and the humidity detection probe, the power failure detection probe and the anti-theft probe which are needed to be installed according to the needs; d: after the alarm system breaks down, a user carries out replacement type maintenance and purchase on one of the host machine or the probe; e: when a user needs to change the monitoring type, the new functional probe and the original probe are exchanged.

Furthermore, the temperature detection probe of the multi-mode selectable alarm system is a hydraulic expansion type temperature controller, a second wiring terminal of the three-core power plug is connected with one end of the temperature controller, and the other end of the temperature controller is connected with the other wiring terminal of the three-core power plug.

Further, the humidity detection probe of the multi-mode selectable alarm system comprises a direct current-to-alternating current power supply module, a humidity sensor with the model MS01-A, a resistor, an adjustable resistor, a diode, an NPN triode and a PNP triode, wherein the humidity sensor is connected with one end of the resistor and one end of the adjustable resistor through the wiring of the circuit board, the other end of the adjustable resistor is connected with the anode of the diode, the cathode of the diode is connected with the base of the NPN triode, the collector of the NPN triode is connected with the base of the PNP triode, two ends of the power output of the direct current to alternating current power module are respectively connected with the other end of the humidity sensor and the other end of the resistor, two wiring ends of the three-core power plug are respectively connected with two ends of the power input of the direct current to alternating current power module, the emitter of the PNP triode and the emitter of the NPN triode, and the collector of the PNP triode.

Further, the power failure detection probe of the multi-mode selectable alarm system comprises a resistor, an optocoupler, an NP triode, an NPN triode and a diode, the three-core power plug is characterized in that the three-core power plug is connected with a circuit board in a wiring way, one end of a first resistor is connected with the anode of a photoelectric diode hidden in an optical coupler, the collector of the photoelectric triode hidden in the optical coupler is connected with the base of an NPN triode and one end of a second resistor, the Q collector of the NPN triode is connected with the base of a PNP triode, two wiring ends of the three-core power plug are respectively connected with the emitter of the PNP triode, the other end of the second resistor, the emitter of the photoelectric triode hidden in the optical coupler and the emitter of the NPN triode, the collector of the PNP triode is connected with the other wiring end of the three-core power plug, the other end of the first resistor is connected with a phase line of a detection ground area through a.

Furthermore, the anti-theft probe of the anti-theft multimode selectable alarm system is a pyroelectric infrared detection module, two wiring terminals of the three-core power plug are respectively connected with two ends of the power input of the pyroelectric infrared detection module, and the pin 3 at the output end of the pyroelectric infrared detection module is connected with the other wiring terminal of the three-core power plug.

Furthermore, the alarm main circuit of the multi-mode selectable alarm system comprises a silicon controlled rectifier, a relay and a resistor, wherein the silicon controlled rectifier, the relay and the resistor are connected through a circuit board in a wiring mode, the cathode of the silicon controlled rectifier is connected with the anode power supply input end of the relay, and one end of the resistor is connected with the control electrode of the silicon controlled rectifier.

The invention has the beneficial effects that: in the production of the invention, a manufacturer produces and sells the host machine, the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe respectively, and a user purchases the host machine, the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe according to the requirement. The invention can detect the temperature, humidity, power failure and theft prevention according to the requirement of a user after inserting the power plugs of the temperature detection probe, the humidity detection probe, the power failure detection probe and the theft prevention probe into the power socket of the host. The invention has various split probes, the access modes of the probes and the host are completely consistent, the effective monitoring of one signal can be conveniently realized through the insertion of the corresponding probe and the host, and a user can replace the probe after the probe has a problem (or the host is replaced and the intact probe is continuously used), so that the user can conveniently switch among various alarm signal detection according to the requirement, convenience is brought to the user, the use cost is saved, and the market competitiveness of the produced product of a manufacturer is improved. Based on the above, the invention has good application prospect.

Drawings

The invention is further illustrated below with reference to the figures and examples.

Fig. 1 is a schematic diagram of an alternative wireline alarm system according to the present invention.

Fig. 2 is a circuit diagram of an alternative wireline alarm system of the present invention.

Detailed Description

As shown in fig. 1, a wire alarm system with selectable probes comprises a short message module 1 with telephone and short message alarm functions, a storage battery 2, a charging socket 3, a power socket 4, a power switch 5, a temperature detection probe 6, a humidity detection probe 7, a power failure detection probe 8, an anti-theft probe 9 and an alarm main circuit 10; the short message module 1, the alarm main circuit 10, the storage battery 2, the charging socket 3, the power socket 4 and the power switch 5 are arranged on a circuit board and connected through circuit board wiring, the circuit board is arranged in the element box 11 to serve as a host, a jack of the power socket 4 is positioned outside an opening at the lower end of the element box 11, and an operating handle of the power switch 5 and jacks of the charging socket 3 are positioned outside two openings at the front end of the element box 11; the temperature detection probe 6, the humidity detection probe 7, the power failure detection probe 8, the anti-theft probe 9 and the host and element box 11 are respectively in a split structure and are respectively provided with a three-core power plug 12 which are connected through a lead. The three-core power plug 12 of the temperature probe 6, the humidity probe 7, the power failure detection probe 8 and the anti-theft probe 9 are respectively inserted into the power socket 4 under the element box 11 to realize the connection with the storage battery 2 and the alarm main circuit 10. A wired alarm system with selectable probes and an application method are as follows: in the production of manufacturers, a host, a temperature detection probe 6, a humidity detection probe 7, a power failure detection probe 8 and an anti-theft probe 9 are produced and sold respectively; b: the temperature detection probe 6, the humidity detection probe 7, the power failure detection probe 8 and the anti-theft probe 9 are connected with the host machine in an inserting way through a three-core power plug 12 and a three-core power socket 4; and C, the user purchases the host and one of the temperature detection probe 6 and the humidity detection probe 7, the power failure detection probe 8 and the anti-theft probe 9 as required to install: d: after the alarm system breaks down, a user carries out replacement type maintenance and purchase on one of the host machine or the probe; e: when a user needs to change the monitoring type, the new functional probe and the original probe are exchanged.

As shown in fig. 1 and 2, the short message module a is a finished product of a short message module with a brand KING packet and a model S271, and the short message module a has 3-way switching value signal input ends and a working voltage of direct current 12V. The storage battery G is 12V/10Ah in model number, the charging socket CZ is a coaxial charging socket with two terminals, the power socket CZ1 is a coaxial power socket with three terminals, and the power switch S is a toggle power switch. The temperature detection probe WT is a liquid expansion type temperature controller of Korean rainbow brand and model TS-050S, and can select the temperature between the range of 0 and 100 ℃, a three-core power plug CT2 matched with the temperature detection probe is installed on a circuit board, the temperature detection probe and the three-core power plug are connected through circuit board wiring, the circuit board is installed in an outer shell, the upper end of the three-core power plug CT2 is positioned outside the upper end of the outer shell, a second terminal 2 pin (a first terminal is suspended) of the three-core power plug CT2 is connected with one end of the temperature controller WT, and the other end of the temperature controller WT (a temperature sensing surface of the temperature controller WT is positioned outside a front opening hole of the outer shell) is connected with the other terminal 3 pin of the three-core power. The humidity detection probe comprises a three-core power plug CT and a direct current transfer current power module A1 (finished product of direct current transfer current power module of RUIZHILK brand, input and output voltages are consistent), a humidity sensor RS of model MS01-A (the front end of the detection surface of the humidity sensor RS is positioned outside an opening at the front end of the outer shell), a resistor R1, an adjustable resistor RP (an adjusting handle is positioned outside the upper end of the outer shell), a diode VD, an NPN triode Q1 and a PNP triode Q2, wherein the adjustable handle is connected with the upper end of the outer shell through a circuit board in a wiring way, the circuit board is arranged in the outer shell A, the upper end of the three-core power plug CT is positioned outside the upper end of the outer shell A, one end of the humidity sensor RS is connected with one end of the resistor R1 and one end of the adjustable resistor RP, the other end of the adjustable resistor RP is connected with the anode of the diode VD, two

pins

3 and 4 at the power output end of the direct-current to alternating-current power supply module A1 are respectively connected with the other end of the humidity sensor RS and the other end of the resistor R1, two

terminals

2 and 1 of a three-core power supply plug CT are respectively connected with two

terminals

1 and 2 at the power input end of the direct-current to alternating-current power supply module A1, an emitting electrode of a PNP triode Q2 and an emitting electrode of an NPN triode Q1, and a collecting electrode of the PNP triode Q2 is connected with the other terminal 3 of the three-core power supply plug CT. The power failure detection probe comprises a three-core power plug CT3, resistors R2 and R3, an optical coupler GO, a PNP triode Q4, an NPN triode Q3 and a diode VD1, wherein the three-core power plug CT3, the resistors R2 and R3 are matched; the three-core power plug CT3 is connected with a PNP triode Q4 emitter, the other end of the second resistor R3, a PNP triode Q68524 emitter, a PNP triode Q4 emitter, the other end of the second resistor R6323, a PNP triode CT1 emitter, a PNP triode Q4624 emitter, a PNP triode Q4 collector and a third terminal pin 3 of a CT3, the other end of the first resistor R2 is connected with a 220V conductor of a detection area through a conductor wire, and the negative electrode of the GO opto-coupled photodiode is connected with the positive electrode of a diode VD 2, the cathode of the diode VD1 is connected to the zero line of the detection area. The anti-theft probe comprises a three-core power plug CT1 and a pyroelectric infrared detection module A2 with a Fresnel lens (a pyroelectric infrared detection module A2 probe is positioned at the rear inner end of the Fresnel lens, the detection distance is about 10 meters), the model of the pyroelectric infrared detection module A2 is HC-SR501, the pyroelectric infrared detection module A2 and the pyroelectric infrared detection module A2 are connected through circuit board wiring, the circuit board is installed in a shell C, the upper end of a three-core power plug CT1 head is positioned outside the upper end of the shell C, a Fresnel lens 91 of a pyroelectric infrared detection module A2 is positioned outside an opening at the front end of the shell, two

terminals

2 and 1 of the three-core power plug CT1 are respectively connected with two

terminals

1 and 2 of a power input end of the pyroelectric infrared detection module A2, and the output end 3 pin of the pyroelectric infrared detection module A2 is connected with the other terminal 3. The alarm main circuit comprises a silicon controlled rectifier VS, a relay K and a resistor R, wherein the silicon controlled rectifier VS, the relay K and the resistor R are connected through circuit board wiring, a silicon controlled rectifier VS cathode is connected with a positive power supply input end of the relay K, and one end of the resistor R is connected with a silicon controlled rectifier VS control electrode.

As shown in fig. 2, two ends of the charging socket CZ are respectively connected with the positive electrode and the negative electrode of the storage battery G (the storage battery G is out of power and an external 12V power charger plug can be inserted into the charging socket CZ to charge the storage battery G), the positive electrode of the storage battery G is connected with one end of a power switch S, the other end of the power switch S, the negative electrode of the storage battery G, two

ends

1 and 2 pins of a power input of a short message module a, two ends of a power input of an alarm main circuit, a positive electrode of a silicon controlled rectifier VS, a power input end of a negative electrode of a; one of the

pins

5 and 6 of the switching value signal input end of the short message module A is respectively connected with the control contact end and the normally open contact end of the signal output end relay K of the alarm main circuit; the other end of the alarm main circuit signal input end resistor R is connected with the other terminal 3 pin of the power socket CZ 1.

As shown in fig. 2, after the power switch S is turned on, the power output by the storage battery G enters

pins

2 and 1 of the power socket CZ1 and the power input ends of the alarm main circuit and the short message module a, so that the alarm main circuit and the short message module a are in a power-on working state. After the anti-theft three-core power plug is installed in a monitoring area in use, if alarm detection needs to be realized, a three-core power plug CT1 matched with the anti-theft probe is inserted into a power socket CZ1 of a host, and a Fresnel lens of a pyroelectric infrared detection module A2 faces to the front end, so that a power supply output by a storage battery G enters into

pins

2 and 1 of the three-core power plug CT1 through

pins

2 and 1 of the power socket CZ1 and enters into

pins

1 and 2 of two power input ends of a pyroelectric infrared detection module A2; when no thief enters a monitoring area at ordinary times, no level output exists at the pin 3 of the pyroelectric infrared detection module A2, when the thief enters the detection head monitoring area of the pyroelectric infrared detection module A2, the high level output by the pin 3 of the pyroelectric infrared detection module A2 enters the other end of the resistor R through the pin 3 of the power plug CT1 and the pin 3 of the power socket CZ1, the high level triggers the silicon controlled rectifier VS to be conducted through the resistor R, and then the relay K is electrified to attract the control contact end and the normally open contact end of the relay to be closed; because one of the

pins

5 and 6 of the signal input end of the short message module A is respectively connected with the control contact end and the normally open contact end of the relay K, the short message module A can send a short message to a mobile phone of a user under the function of the short message module A, and the alarm condition is informed to the scene.

As shown in fig. 2, after the present invention is installed in a monitoring area in use, if temperature detection is required, a three-core power plug CT2 matched with a temperature detection probe is inserted into a power socket CZ1 of a host computer, so that the positive pole of the power output by a storage battery G enters into a2 pin of the three-core power plug CT2 through 2 and 1 pins of the power socket (CZ 1); when the field temperature data is lower than the temperature threshold set by a user through a temperature controller WT adjusting knob (for example, 35 ℃), two contacts of the temperature controller WT are in an open circuit state, the anode of the 12V power supply cannot enter a pin 3 of a three-core power plug CT2, so that a subsequent relay K cannot be electrified and attracted, and a short message module A cannot send a short message; when the field temperature data is higher than a temperature threshold set by a user through a temperature controller WT adjusting knob (for example, 35 ℃), two contacts of the temperature controller WT are in a closed state, the anode of a 12V power supply enters the other end of a resistor R through a pin 3 of a power plug CT2 and a pin 3 of a power socket CZ1, a high level triggers a silicon controlled rectifier VS to be conducted through the resistor R, and then a relay K is electrified to attract the control contact end and the normally open contact end of the relay K to be closed; because one of the

pins

5 and 6 of the switching value signal input end of the short message module A is respectively connected with the control contact end and the normally open contact end of the relay K, the short message module can send a short message to a mobile phone of a user under the function of the short message module per se to inform that the field temperature exceeds the standard.

As shown in fig. 2, after the present invention is installed in a monitoring area during use, if humidity detection is required, the three-core power plug CT associated with the humidity detection probe is inserted into the power socket CZ1 of the host, so that the power output by the storage battery G enters the

pins

2 and 1 of the three-core power plug CT through the power socket (CZ1)

pins

2 and 1, and enters the

pins

1 and 2 of the dc-to-ac power module a1, the emitter of the PNP triode, and the emitter of the NPN triode Q1; after the direct current to alternating current power supply module A1 works, a 12V alternating current power supply is output under the action of an internal circuit of the direct current to alternating current power supply module A1 and respectively enters two input ends of a humidity sensor RS power supply (a resistor R1 plays a role in reducing voltage and limiting current), so that the humidity sensor RS works in a power-on mode (the humidity sensor RS works to prevent polarization, and only an alternating current power supply can be adopted if a direct current power supply cannot be adopted); the humidity sensor RS can effectively detect the humidity change of 30% -95% of the outside after being electrified, voltage signals input to one end of the adjustable resistor RP by the output end of the humidity sensor RS are different according to different detected humidity, and the humidity is high in voltage and the humidity is low in voltage; when the voltage of the power supply is lower than 0.7V after being rectified by the diode VD after being subjected to voltage reduction and current limitation through the adjustable resistor RP (different humidity detection can be realized by adjusting different resistance values of the adjustable resistor RP), namely when the voltage does not reach a humidity threshold value (such as 80% humidity) of a detection area set by a user, because the voltage is lower than the base initial voltage of the NPN triode Q1, the NPN triode Q1 is in a cut-off state, then, the collector of the PNP triode Q2 has no output, a subsequent relay K cannot be electrified and attracted, and the short message module A cannot send a short message. When the voltage of the power supply is higher than 0.7V after being rectified by a diode VD after being subjected to voltage reduction and current limitation by an adjustable resistor RP, namely field humidity data, and is higher than a detection area humidity threshold value set by a user (for example, 80% humidity), because the voltage is higher than the base initial voltage of an NPN triode Q1 at the moment, the NPN triode Q1 is in a conducting state, the collector of the NPN triode Q1 outputs high level to enter the base of a PNP triode Q2, the high level output by the conduction of the PNP triode Q2 enters the other end of a resistor R through a pin 3 of a power plug CT and a pin 3 of a power socket CZ1, the high level triggers a silicon controlled rectifier VS to be conducted through the resistor R, and then a relay K is; because one of the

pins

5 and 6 of the switching value signal input end of the short message module A is respectively connected with the control contact end and the normally open contact end of the relay K, the short message module can send a short message to a mobile phone of a user under the function of the short message module per se to inform that the field humidity exceeds the standard.

As shown in fig. 2, after the present invention is installed in a monitoring area during use, if a power failure detection needs to be implemented, a three-core power plug CT3 matched with a power failure detection probe is inserted into a power socket CZ1 of a host (the other end of a first resistor R2 is connected with a 220V phase line of a detection area through a conducting wire in advance, and the negative electrode of a diode VD1 is connected with a zero line of the detection area), so that power output by a storage battery G enters into

pins

2 and 1 of the three-core power plug CT3 through

pins

2 and 1 of the power socket (CZ1), and enters into an emitter of a PNP triode Q4 NPN and an emitter of a triode Q3; when no power failure exists at ordinary times, a 220V alternating current power supply phase line and a zero line are subjected to voltage reduction and current limitation through a resistor R2, a diode VD1 half-wave rectification and a built-in photodiode of an optocoupler GO form a closed passage, so that the built-in photodiode of the optocoupler GO is electrified and shines, a built-in phototriode of the optocoupler GO is conducted with a collector electrode to output a low level to enter an NPN triode Q3 base electrode, the base electrode of the NPN triode Q3 is not provided with proper forward bias voltage to be cut off, then, the collector electrode of the PNP triode Q4 is not output, a follow-up relay K cannot. After power failure at ordinary times, a 220V alternating current power supply phase line and a zero line can not be subjected to voltage reduction and current limitation through a resistor R2, a diode VD1 half-wave rectification and a built-in photodiode of an optical coupler GO form a closed circuit, so that the built-in photodiode of the optical coupler GO is not subjected to power loss and does not emit light any more, a built-in photodiode of the optical coupler GO is cut off, a collector of the built-in photodiode of the optical coupler GO does not output low level and enters a base of an NPN triode Q3, then, the base of the NPN triode Q3 obtains proper bias voltage from a 12V power supply anode through a resistor R3 for voltage reduction and current limitation, the low level is output and enters a base of a PNP triode Q4, a high level output by a conductive collector of the PNP triode Q4 enters the other end of the resistor R through a pin 3 of a power plug CT3 and a pin 3 of a power; because one of the

pins

5 and 6 of the switching value signal input end of the short message module A is respectively connected with the control contact end and the normally open contact end of the relay K, the short message module can send a short message to a mobile phone of a user under the function of the short message module per se to inform the field of power failure.

In the production of the invention, as shown in fig. 2, a manufacturer produces and sells the host machine, the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe respectively, and a user purchases the host machine, the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe as required. The invention can be used for detecting the on-site temperature, the humidity, the power failure and the theft prevention according to the requirements of users after the power plugs of the temperature detection probe, the humidity detection probe, the power failure detection probe and the theft prevention probe are respectively inserted into the power socket of the host machine. The invention has a plurality of split probes, the access modes of the plurality of probes and the host are completely consistent, one signal can be conveniently and effectively monitored by the insertion of the corresponding probe and the host, and when the probe has a problem (or the host is replaced and the intact probe is continuously used; a specific user can bring the host and the probe to a sale place to determine whether the host or the probe has a fault by adopting a substitution method, if the own probe is inserted into the host sold by a merchant to work normally, the own host is damaged, and if the own probe is abnormal, the own probe can be damaged), the user can also replace the own probe, therefore, the user can conveniently switch among various alarm signal detection according to the requirement, convenience is brought to the user, the use cost is saved, and the market competitiveness of the produced product of a manufacturer is improved. In the invention, a production party needs to determine the number of the resistance value alignment of the adjustable resistor RP, the determination is carried out in a room capable of automatically controlling the humidity environment, for example, the resistance value of the adjustable resistor RP is adjusted in a 50% humidity environment, just after the PNP triode Q2 outputs high level, the resistance value of the adjustable resistor RP (the adjusting handle is positioned outside the middle part of the outer shell) is adjusted to the required value, then the aligned position of the adjusting handle is positioned outside the middle opening on the outer shell, the corresponding humidity number (maximum 100% and minimum zero) marked by the adjusting handle of the adjustable resistor RP is encircled, the aligned humidity number of the adjusting handle at the moment is 50%, the number of the subsequent adjusting handle rotating towards left is changed from big to small, the number of the adjusting handle rotating towards right is changed from small to big, the selection of the subsequent user for the humidity range is met (the number is not aligned, the corresponding humidity number needs, after marking, the number is marked according to the determined position in subsequent production, and the number does not need to be determined again). The resistance value of the resistor R1 is 560K, the resistance value of the adjustable resistor RP is 1M, the models of the diode VD and VD1 are 1N4004, the resistance value of the resistor R1K, NPN is 9012 in the model of the triode Q1 and Q3, the models of the PNP triode Q2 and Q4 are 9012, the relay K is a DC12V relay, the controllable silicon VS is a model MCR100-1 plastic-packaged unidirectional controllable silicon, the resistance value of the resistor R3 is 47K, and the resistance value of the resistor R2 is 100K.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A wired alarm system with selectable probes comprises a short message module, a storage battery and a power socket, and is characterized by also comprising a temperature detection probe, a humidity detection probe, a power failure detection probe, an anti-theft probe and an alarm main circuit; the short message module, the alarm main circuit, the storage battery and the power socket are arranged on the circuit board and used as a host, and are electrically connected through circuit board wiring; the positive and negative electrodes of the storage battery are respectively and electrically connected with the two ends of the power input of the main alarm circuit and the two terminals of the power socket; the signal input end of the short message module is electrically connected with the signal output end of the alarm main circuit; the signal input end of the alarm main circuit is electrically connected with the other power input end of the power socket; the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe are all provided with a three-core power plug which are electrically connected; the power input ends of the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe are respectively and electrically connected with two wiring terminals of the three-core power plug, and the signal output ends of the temperature detection probe, the humidity detection probe, the power failure detection probe and the anti-theft probe are respectively and electrically connected with the other wiring terminal of the three-core power plug; the application method of the wired alarm system with the selectable probes comprises the following steps: in the production of manufacturers, a host, a temperature detection probe, a humidity detection probe, a power failure detection probe and an anti-theft probe are produced and sold respectively; b: the temperature detection probe, the humidity detection probe, the power failure detection probe, the anti-theft probe and the host are electrically connected through a three-core power plug and a three-core power socket in an inserting way; c, a user purchases the host machine and one of the temperature detection probe and the humidity detection probe, the power failure detection probe and the anti-theft probe which are needed to be installed according to the needs; d: after the alarm system breaks down, a user carries out replacement type maintenance and purchase on one of the host machine or the probe; e: when a user needs to change the monitoring type, the new functional probe and the original probe are exchanged.

2. The multi-mode selectable alarm system of claim 1, wherein the temperature probe is a hydraulically expanding thermostat, the second terminal of the three-pin power plug is connected to one end of the thermostat, and the other end of the thermostat is connected to the other terminal of the three-pin power plug.

3. The multi-mode selectable alarm system of claim 1, wherein the humidity detection probe comprises a DC-AC power supply module, a humidity sensor model MS01-A, a resistor, an adjustable resistor, a diode, an NPN transistor, and a PNP transistor, wherein the humidity sensor is connected with one end of the resistor and one end of the adjustable resistor through the wiring of the circuit board, the other end of the adjustable resistor is connected with the anode of the diode, the cathode of the diode is connected with the base of the NPN triode, the collector of the NPN triode is connected with the base of the PNP triode, two ends of the power output of the direct current to alternating current power module are respectively connected with the other end of the humidity sensor and the other end of the resistor, two wiring ends of the three-core power plug are respectively connected with two ends of the power input of the direct current to alternating current power module, the emitter of the PNP triode and the emitter of the NPN triode, and the collector of the PNP triode.

4. A multi-mode selective alarm system according to claim 1, wherein the power failure detection probe comprises a resistor, an optocoupler, an NP triode, an NPN triode, and a diode connected by wiring on a circuit board, wherein one end of the first resistor is connected to the positive electrode of the optocoupler-included photodiode, the collector of the optocoupler-included phototransistor is connected to the base of the NPN triode, one end of the second resistor is connected to the Q collector of the NPN triode, the base of the PNP triode, and two terminals of the three-core power plug are connected to the emitter of the PNP triode, the other end of the second resistor, the emitter of the optocoupler-included phototransistor and the emitter of the NPN triode, respectively, the collector of the PNP triode is connected to the other terminal of the three-core power plug, the other end of the first resistor is connected to the phase line of the detection area via a wire, and the negative electrode of the optocoupler, the cathode of the diode is connected with the zero line of the detection area.

5. The system of claim 1, wherein the anti-theft probe is a pyroelectric infrared detection module, two terminals of the three-core power plug are respectively connected with two ends of a power input of the pyroelectric infrared detection module, and a pin 3 at an output end of the pyroelectric infrared detection module is connected with the other terminal of the three-core power plug.

6. The system of claim 1, wherein the alarm main circuit comprises a thyristor, a relay and a resistor, the thyristor, the relay and the resistor are connected through a circuit board, a cathode of the thyristor is connected with a positive power supply input end of the relay, and one end of the resistor is connected with a control electrode of the thyristor.