CN108415338A - A student dormitory security monitoring system and method - Google Patents

Abstract

The invention discloses a student dormitory safety monitoring system and method. The monitoring system includes: a single-chip microcomputer, a power/electric energy measurement circuit, a temperature measurement circuit, a smoke detection circuit, a clock circuit, a voltage measurement circuit, a display circuit, an alarm circuit, a GSM module, a relay output circuit, a storage circuit and an upper computer; Power/energy measurement circuit, the temperature measurement circuit, the smoke detection circuit, the clock circuit, the voltage measurement circuit, the display circuit, the alarm circuit, the GSM module, the relay output circuit, The storage circuit and the host computer are respectively connected to the single-chip microcomputer; the student dormitory safety monitoring system is installed in each dormitory for monitoring the dormitory safety in each dormitory. The monitoring system and method provided by the invention can improve the accuracy of the obtained monitoring results.

Description

A student dormitory security monitoring system and method

technical field

The invention relates to the field of student dormitory safety monitoring, in particular to a student dormitory safety monitoring system and method.

Background technique

In recent years, with the expansion of enrollment in colleges and universities, more students can enter the university campus, and the activity time of students in the dormitory is the longest. Usually, the power consumption of college dormitories is configured according to the basic living needs of students. For their own convenience, some students use high-power electrical equipment in the room, such as electric stoves, hot heaters, electric irons and other illegal electrical appliances. Due to the use of illegal electrical appliances, fire accidents occur from time to time, causing damage to national property. The serious loss also poses a certain threat to the lives of college students. Although all colleges and universities have formulated various rules and regulations, the effect is not obvious due to the large changes, complex sources, and different levels of students. If one percent of students use high-power electrical appliances in violation of regulations, it may harm ninety-nine percent of students. Students bring huge hidden dangers to the school's electricity safety management. At this stage, colleges and universities do not have a fully functional security monitoring system for each dormitory.

Now dormitories in colleges and universities usually use electric meters to measure electricity consumption, but the electric meters are installed in designated locations in the dormitory building, and students cannot obtain electricity consumption information; and the dormitory building can only limit students' electricity consumption by cutting off power beyond a fixed power, and cannot identify students Whether to use illegal electrical appliances; fire monitoring devices are usually installed in the corridors, which cannot monitor the safety of each dormitory in real time.

Therefore, defective and deficiency of prior art:

1. Existing college dormitory electricity meters are all installed in a specific location, and students cannot know the electricity consumption status of the dormitory in real time; at the same time, most of the fire alarm systems in the dormitory are installed in the corridors, which cannot monitor the safety hazards of each dormitory.

2. At present, domestic colleges and universities mainly adopt two methods to limit high-power electrical appliances: one is ordinary current control, by limiting the maximum total current value, line protection, this is the ordinary fuse function, and the dormitory management personnel cannot obtain real-time and it is impossible to know which dormitory uses illegal electrical appliances, and the power outage in the whole dormitory building brings great inconvenience to the daily life of students; , and finally judge the power of the pure resistance circuit part, and then control it. This method only limits the part of the pure resistance circuit, but has no restriction on the electrical appliances with waveform changes. The safety of the dormitory is monitored, resulting in low accuracy of the monitoring results.

Contents of the invention

The purpose of the present invention is to provide a student dormitory safety monitoring system and method to solve the problem that the existing technology cannot monitor the safety hazards of each dormitory in real time, and cannot monitor the dormitory safety from various aspects, resulting in low accuracy of monitoring results The problem.

To achieve the above object, the present invention provides the following scheme:

A student dormitory safety monitoring system, including: single-chip microcomputer, power/energy measurement circuit, temperature measurement circuit, smoke detection circuit, clock circuit, voltage measurement circuit, display circuit, alarm circuit, GSM module, relay output circuit, storage circuit and upper machine;

The power/energy measurement circuit, the temperature measurement circuit, the smoke detection circuit, the clock circuit, the voltage measurement circuit, the display circuit, the alarm circuit, the GSM module, the relay output The circuit, the storage circuit and the host computer are respectively connected to the single-chip microcomputer; the student dormitory safety monitoring system is installed in each dormitory for monitoring the dormitory safety in each dormitory.

Optionally, the power/electric energy measurement circuit specifically includes: a resistor, a capacitor, a metering chip, a voltage regulator tube, a piezoresistor, a first three-terminal voltage regulator integrated circuit, a photocoupler, and a crystal oscillator;

The resistor includes i resistors, 0<i≤26; the capacitor includes j capacitors, 0<j≤16;

The first resistor to the twelfth resistor are connected in series to obtain a resistor series string; the resistor series string is respectively connected in parallel with the twelfth capacitor to the fourteenth capacitor and the thirteenth resistor to the fourteenth resistor to obtain a parallel string; the parallel connection The string is connected with the metering chip; the twenty-first resistor is connected with the eleventh capacitor and the metering chip respectively; the twenty-second resistor is connected with the twelfth capacitor and the metering chip respectively; the manganese copper resistor is connected in parallel between the twenty-first resistor and the twenty-second resistor;

The voltage regulator tube is connected in parallel with the piezoresistor; the first capacitor, the twenty-third resistor, and the voltage regulator tube are connected in series; the voltage regulator tube, the second capacitor to the fifth capacitor, the first The three-terminal voltage stabilizing integrated circuit, the fifteenth capacitor and the sixteenth capacitor are connected together in parallel; a first diode is arranged between the voltage stabilizing tube and the second capacitor; between the fourth capacitor and the fifth capacitor A twenty-fourth resistor is provided;

The metering chip is connected to the photocoupler; the photocoupler is connected to the twenty-sixth resistor; the photocoupler is also connected to the light-emitting diode; the light-emitting diode is connected to the twenty-fifth resistor; The metering chip is respectively connected to the crystal oscillator and the ninth capacitor; the ninth capacitor and the tenth capacitor are connected in series.

Optionally, the temperature measurement circuit specifically includes: a temperature sensor and a thirty-fourth resistor;

The temperature sensor is connected in parallel with the thirty-fourth resistor.

Optionally, the relay output circuit specifically includes: two relay output modules;

The relay output module includes a diode, a triode and a resistor;

The emitter of the triode is connected with the diode; the collector of the triode is grounded; the base of the triode is connected with the resistor.

Optionally, the voltage measurement circuit specifically includes: a dual coil, a rectifier bridge, a converter, a second three-terminal voltage stabilizing integrated circuit, and the seventeenth to twentieth capacitors;

The dual coil is connected to the rectifier bridge; the second three-terminal voltage stabilizing integrated circuit is connected to the seventeenth capacitor and the eighteenth capacitor connected in parallel; the second three-terminal voltage stabilizing integrated circuit is also connected to the The nineteenth capacitor and the twentieth capacitor connected in parallel are connected.

Optionally, the alarm circuit specifically includes: a triode, a buzzer and a resistor;

The emitter of the triode is connected with the power supply; the collector of the triode is connected with the buzzer; the base of the triode is connected with the resistor.

Optionally, the storage circuit specifically includes: a storage device, a thirty-first resistor, and a thirty-second resistor;

The thirty-first resistor and the thirty-second resistor are respectively connected to different interfaces of the storage device.

A safety monitoring method for a student dormitory, the monitoring system comprising: a single-chip microcomputer, a power/electric energy measurement circuit, a temperature measurement circuit, a smoke detection circuit, a clock circuit, a voltage measurement circuit, a display circuit, an alarm circuit, a GSM module, a relay output circuit, storage circuit and host computer; the power/energy measurement circuit, the temperature measurement circuit, the smoke detection circuit, the clock circuit, the voltage measurement circuit, the display circuit, the alarm circuit, the GSM The module, the relay output circuit, the storage circuit and the host computer are respectively connected to the single-chip microcomputer; the student dormitory safety monitoring system is installed in each dormitory to monitor the dormitory safety in each dormitory;

The monitoring methods include:

Get the current temperature value of each dormitory;

judging whether the current temperature value exceeds a temperature threshold, and obtaining a first judging result;

If the first judgment result indicates that the current temperature value exceeds a temperature threshold, an alarm is issued;

If the first judgment result indicates that the current temperature value does not exceed the temperature threshold, obtain the smoke concentration value of each dormitory;

judging whether the smoke concentration value exceeds a smoke concentration threshold, and obtaining a second judgment result;

If the second judgment result indicates that the smoke density value exceeds the smoke density threshold, an alarm is issued;

If the second judgment result indicates that the smoke concentration value does not exceed the smoke concentration threshold, obtain the power consumption of each dormitory;

Calculate the power consumption of each dormitory according to the power consumption;

judging whether the electric power exceeds a power safety value, and obtaining a third judging result;

If the third judgment result indicates that the electric power exceeds the power safety value, power off the corresponding dormitory exceeding the power safety value and send the dormitory information to the client; the client includes the upper computer and the staff of the dormitory management center mobile phone.

According to the specific embodiments provided by the present invention, the present invention discloses the following technical effects: The present invention discloses a safety monitoring system for student dormitories. The safety monitoring system is installed in each dormitory, which can measure and display the electricity consumption status in real time At the same time, the system has both fire detection and alarm functions. The system also displays the indoor temperature, smoke concentration and time information in real time. The safety monitoring system has multiple monitoring modules, so it can monitor the safety of each dormitory in all aspects and improve the monitoring results. accuracy; at the same time, the invention also discloses a safety monitoring method for student dormitories, which monitors the use of illegal electrical appliances, cuts off the power when the power limit exceeds the specified upper limit, and reports the dormitory information of illegal electrical appliances to the management personnel at the same time. Management personnel can go to the scene for processing in the first time.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without paying creative labor.

Fig. 1 is the structural diagram of the student dormitory security monitoring system provided by the embodiment of the present invention

Fig. 2 is the circuit diagram of the power/energy measuring circuit provided by the embodiment of the present invention;

Fig. 3 is the circuit diagram of the temperature measuring circuit provided by the embodiment of the present invention;

Fig. 4 is the circuit diagram of the relay output circuit provided by the embodiment of the present invention;

5 is a circuit diagram of a voltage measurement circuit provided by an embodiment of the present invention;

6 is a circuit diagram of an alarm circuit provided by an embodiment of the present invention;

FIG. 7 is a circuit diagram of a storage circuit provided by an embodiment of the present invention;

Fig. 8 is a flow chart of a student dormitory safety monitoring method provided by an embodiment of the present invention;

9 is a flow chart of the overall software method combined with the student dormitory security monitoring system provided by the embodiment of the present invention;

Fig. 10 is a schematic diagram of the internal structure of the student dormitory security system provided by the embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide a student dormitory safety monitoring system and method, which can monitor the potential safety hazards of each dormitory in real time, monitor the dormitory safety from various aspects, and improve the accuracy of monitoring results.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is the structural diagram of the student dormitory safety monitoring system provided by the embodiment of the present invention. As shown in Fig. Detection circuit 4, clock circuit 5, voltage measurement circuit 6, display circuit 7, alarm circuit 8, Global System for Mobile Communication (Global System for Mobile Communication, GSM) module 9, relay output circuit 10, storage circuit 11 and host computer 12; Power/energy measurement circuit 2, the temperature measurement circuit 3, the smoke detection circuit 4, the clock circuit 5, the voltage measurement circuit 6, the display circuit 7, the alarm circuit 8, the GSM module 9. The relay output circuit 10, the storage circuit 11 and the host computer 12 are respectively connected to the single-chip microcomputer 1; the student dormitory safety monitoring system is installed in each dormitory for monitoring the Dorms are safe.

The present invention adopts the single-chip microcomputer that model is AT89C52 as controller, adopts ADI company model to be the electric energy metering special chip of ADE7755 to dormitory electricity metering and measurement power; voltage measuring circuit 6 changes voltage signal into current signal by voltage transformer, and then The current signal is converted into a voltage signal; then the voltage signal is sent to a converter of the model ADC0832 for data conversion, and the peak value of the voltage is measured, and finally the effective voltage is calculated through the internal operation of the single-chip microcomputer 1.

The invention measures the temperature in the dormitory through the temperature sensor of model DS18B20; uses the smoke sensor of model QM-2 to detect the smoke in the dormitory.

The measured electric energy, power, voltage, temperature, and clock are displayed on the liquid crystal display of model LCD1602.

When the dormitory broke out in a fire alarm situation or used a high-power illegal electrical appliance, an alarm was sent and the information was transmitted to the upper computer 12 and the information was sent to the dormitory management center in the form of a mobile phone message by the GSM module 9.

In practical applications, as shown in Figure 2, the power/electric energy measurement circuit specifically includes: a resistor, a capacitor, a metering chip, a voltage regulator, a piezoresistor, a first three-terminal voltage regulator integrated circuit, a photocoupler, and a crystal Oscillator; the resistor includes i resistors, 0<i≤26; the capacitor includes j capacitors, 0<j≤16; the first resistor to the twelfth resistor are connected in series to obtain a resistor series string; the resistors are connected in series The string is connected in parallel with the twelfth capacitor to the fourteenth capacitor and the thirteenth resistor to the fourteenth resistor to obtain a parallel string; the parallel string is connected to the metering chip; the twenty-first resistor is respectively connected to the eleventh capacitor and the metering chip is connected; the twenty-second resistor is respectively connected to the twelfth capacitor and the metering chip; the manganin resistor is connected in parallel between the twenty-first resistor and the twenty-second resistor; The voltage regulator tube is connected in parallel with the piezoresistor; the first capacitor, the twenty-third resistor, and the voltage regulator tube are connected in series; the voltage regulator tube, the second capacitor to the fifth capacitor, the first The three-terminal voltage stabilizing integrated circuit, the fifteenth capacitor and the sixteenth capacitor are connected together in parallel; a first diode is arranged between the voltage stabilizing tube and the second capacitor; between the fourth capacitor and the fifth capacitor The twenty-fourth resistor is provided; the metering chip is connected with the photocoupler; the photocoupler is connected with the twenty-sixth resistor; the photocoupler is also connected with the light-emitting diode; the light-emitting diode is connected with the The twenty-fifth resistor is connected; the metering chip is respectively connected with the crystal oscillator and the ninth capacitor; the ninth capacitor is connected in series with the tenth capacitor.

In practical applications, as shown in FIG. 3 , the temperature measurement circuit specifically includes: a temperature sensor and a thirty-fourth resistor; the temperature sensor is connected in parallel with the thirty-fourth resistor.

In practical applications, as shown in Figure 4, the relay output circuit 10 specifically includes: two relay output modules; the relay output module includes a diode, a triode and a resistor; the emitter of the triode is connected to the diode ; The collector of the triode is grounded; the base of the triode is connected to the resistor.

In practical applications, as shown in FIG. 5, the voltage measurement circuit 6 specifically includes: a double coil, a rectifier bridge, a converter, a second three-terminal voltage stabilizing integrated circuit, and the seventeenth to twentieth capacitors; The double coil is connected with the rectifier bridge; the second three-terminal voltage stabilizing integrated circuit is connected with the seventeenth capacitor and the eighteenth capacitor connected in parallel; the second three-terminal voltage stabilizing integrated circuit is also connected with the parallel connected The nineteenth capacitor and the twentieth capacitor are connected.

In practical applications, as shown in Figure 6, the alarm circuit 8 specifically includes: a triode, a buzzer and a resistor; the emitter of the triode is connected to a power supply; the collector of the triode is connected to the buzzer connected; the base of the triode is connected with the resistor.

In practical applications, as shown in FIG. 7 , the storage circuit 11 specifically includes: a storage device, a thirty-first resistor, and a thirty-second resistor; the thirty-first resistor and the thirty-second resistor are respectively It is connected with different interfaces of the storage device.

The present invention adopts the AT89C52 single-chip microcomputer as the controller; adopts the ADE7755 electric energy special measurement chip to measure the electric energy and power, and the measured electric energy is stored in the storage device of the model 24C02 before the power is turned off, and the single-chip microcomputer reads the last time after the power is turned on. stored electrical energy.

The multi-functional electric energy can be measured according to the number of pulses output by the ADE7755 chip, and the power consumed by the load can be calculated according to the time interval between two pulses; when the power of the electrical appliances in the dormitory exceeds the safe value, the single-chip microcomputer controls the relay to realize the power-off function of the dormitory, which can effectively limit The use of high-power electrical appliances. When the dormitory uses an illegal electrical appliance, the power is turned off, and the power is turned on after 3 minutes, and the relevant information is sent to the mobile phone of the dormitory management center staff in the form of a text message through the GSM module 9, and the information is sent to the upper computer 12 at the same time. The management staff rushed to deal with it as soon as possible.

After receiving the meter reading information sent by the dormitory management center through the upper computer 12, the multi-functional electric energy meter sends the electric energy to the dormitory electric energy management center in the form of a mobile phone message through the GSM module 9 to realize the wireless meter reading function.

The invention measures the temperature of the dormitory through the DS18B20 temperature sensor, which is convenient for students to understand the temperature in the dormitory; the QM-2 smoke sensor is used to detect the smoke in the dormitory, which is used for fire detection in the dormitory. Once a fire occurs, the surrounding environment temperature rises accordingly, The air is filled with a certain concentration of smoke. When the temperature exceeds the safety value or the smoke sensor detects smoke, a fire occurs, and the buzzer sends a sound alarm, and the alarm information is sent to the mobile phone of the dormitory management center staff in the form of a short message through the GSM module 9, and the information is sent to Host computer 12.

The invention also samples and filters the grid voltage through the AC voltage transformer, and realizes voltage measurement through the ADC0832; uses an LCD1602 liquid crystal display screen to display electric energy, power, temperature, voltage, clock and the like.

Fig. 8 is a flowchart of a student dormitory safety monitoring method provided by an embodiment of the present invention. As shown in Fig. 8, a student dormitory safety monitoring method includes:

Step 801: Obtain the current temperature value of each dormitory;

Step 802: Judging whether the current temperature value exceeds the temperature threshold, if yes, execute step 803, if not, execute step 804;

Step 803: issue an alarm;

Step 804: Obtain the smoke concentration value of each dormitory;

Step 805: Judging whether the smoke concentration value exceeds the smoke concentration threshold, if yes, go to step 806, if not, go to step 807;

Step 806: issue an alarm;

Step 807: Obtain the power consumption of each dormitory;

Step 808: Calculate the power consumption of each dormitory according to the power consumption;

Step 809: Judging whether the electric power exceeds the power safety value, if yes, execute step 810, if not, return to step 801;

Step 810: Power off the corresponding dormitory that exceeds the power safety value and send the dormitory information to the client; the client includes the host computer and the mobile phone of the staff of the dormitory management center; when students are in class, someone enters the dormitory, or there is a fire When it happens, an audible alarm can be sent, and the alarm can also be transmitted to each student's mobile phone.

Figure 9 is a flow chart of the overall software method combined with the student dormitory safety monitoring system provided by the embodiment of the present invention. The method of limiting power is used to limit the use of high-power electrical appliances in the dormitory, and it has functions such as electric energy metering, wireless meter reading, voltage and temperature measurement, etc. At the same time, auxiliary functions such as clock display and fire alarm are added; the invention specifically realizes the following functions:

(1) Realize the measurement of electric energy and power, with an error of ±1%;

(2) Realize wireless meter reading through GSM;

(3) Realize temperature measurement with an error of ±1°C;

(4) Realize the smoke detection function;

(5) Realize fire sound alarm;

(6) Realize sending fire alarm information through GSM;

(7) Realize the measurement of voltage;

(8) Realize the liquid crystal display to display electric energy, power, temperature, voltage, time and date, etc.;

(9) Realize the monitoring of the upper computer.

The dormitory safety monitoring system provided by the present invention is divided into two layers: a PC upper computer monitoring web interface and a lower computer monitoring unit circuit module. The system structure design scheme is shown in Figure 10.

The upper computer system interface is developed using mature SpringMVC3+Hibernate3, and the database uses high-performance and stable Oracle11g database. The Spring Security design is used in the permission control. The entire project is realized by annotations, which avoids the cumbersome configuration of traditional configuration files. Projects are easier to manage and run. The designed lower computer transmits data to the central server through Wi-Fi communication technology, and the upper computer reads the data information of the server port through program control, completes the real-time monitoring of the remote PC, and can observe the relevant information of each dormitory in real time.

Each monitoring unit of the lower computer constitutes a monitoring node, each unit operates independently, and transmits data to the upper server through Wi-Fi mode, each node is freely placed in each position in the dormitory, and is uniformly monitored by the upper computer.

The lower computer is composed of a main control unit, a fire monitoring module, a power consumption monitoring module, an anti-theft monitoring module, a clock circuit module, a liquid crystal display module, an alarm module, a power control module, and a storage circuit module.

(1) The main function of the main control unit is to unify and process a large amount of information transmitted by each monitoring module, and transmit the processed signal information to the remote PC through the Wi-Fi communication module mounted on the main control chip to display. Due to the complex dormitory environment and strong interference signals, it is necessary to choose a main control chip with powerful functions, fast operation speed, strong anti-interference, low price, and small size. This system chooses STC89C52 single-chip microcomputer.

(2) The fire monitoring module includes a temperature monitoring module and a smoke monitoring module, which are mainly responsible for collecting the temperature and smoke concentration in the dormitory. Choose DS18B20 for the temperature sensor and QM-2 for the smoke sensor.

(3) The electricity consumption monitoring module is composed of an electric energy/power monitoring circuit, a voltage monitoring circuit and a current monitoring circuit.

Electric energy collection and power measurement are mainly to convert the analog signal collected by ADE7755 into a frequency signal. ADE7755 calculates the product of the two input voltages V1 and V2 of channel 1 and channel 2, and after eliminating high-frequency clutter interference by LPF (low-pass filter), it is sent to the digital pulse converter.

The voltage measurement adopts the ZMPT101 miniature precision voltage transformer of Nanjing Zeming Electronics Co., Ltd. for step-down measurement. ZMPT101 is a milliampere precision voltage transformer with a rated input current of 2mA, a rated output current of 2mA, a variation of 1000:1000, and a linearity of 0.1%. When used, the output current signal needs to be converted into a voltage signal. The voltage from the power grid is limited by a 50K cement resistor and input to the input terminal of the miniature precision voltage transformer of Nanjing Zeming Electronics Company.

(4) The power control module is realized by controlling the relay. When the power consumption of the dormitory is too large, a power-off signal is sent through the single-chip microcomputer, and the relay changes from the closed state to the open state, cutting off the power supply of the dormitory. The power supply is restored after three minutes, which can effectively limit the use of high-power electrical appliances in the dormitory. When there is a fire in the dormitory, the single-chip microcomputer sends a power-off signal, and the power supply is restored when the dormitory returns to normal.

(5) The DS1302 clock chip is used to realize the clock. DS1302 is a high-performance, low-power, real-time clock circuit with RAM. It can time the year, month, day, week, hour, minute, and second, and has a leap year compensation function , The operating voltage is 2.5V ~ 5.5V.

(6) LCD1602 character liquid crystal display is adopted, which can display 16×02 or 32 characters at the same time. 1602 LCD is simple to drive, relatively high cost performance, simple interface circuit, and can be directly connected to a single-chip microcomputer.

The student dormitory safety monitoring method and system provided by the present invention can achieve the following effects:

(1) Low power consumption

The hardware circuits of the security monitoring unit are all components with high performance, low energy consumption and low cost, which can effectively reduce the energy consumption and cost of the monitoring unit. It can realize the long-time work of the monitoring unit module, realize energy saving, and embody the design concept of environmental green.

(2) High monitoring accuracy

The main function of this system is to monitor parameters such as electric energy, voltage, temperature, and smoke concentration in the dormitory, and to achieve high-precision detection. The accuracy of the data is directly related to the related working status of other subsystems, and it can also provide students with a A more secure and safe living environment. Since the system uses high-precision sensors, it can realize high-precision monitoring of parameters: electric energy measurement error <±1%; voltage measurement error <±2%; temperature measurement accuracy is less than ±0.5°C; smoke concentration measurement accuracy reaches 0.1%.

(3) Small size

Each monitoring unit is used as a monitoring node, the design is compact, simple and scientific, beautiful and practical, and the Wi-Fi transmission module is combined with the PCB board to realize the monitoring function, which can greatly save the indoor space.

(4) Low cost

Since none of the products currently on the market includes a fire alarm device, an electric energy monitoring device, and a clock device, the functions of fire alarm, electric energy monitoring, power failure, and clock energy can be realized. These functions on the market are produced by different manufacturers, and each product is controlled by its own smart chip. If all three products are purchased, the cost will increase. This system uses an intelligent chip to realize these various functions, and the cost will be greatly reduced.

(5) Fully functional

At this stage, there is no product on the market that integrates fire warning, power monitoring and clock display functions. The functions that this system can realize: realize the measurement of electric energy and power; realize high-power power off; realize the judgment of the type of electrical equipment; realize voltage measurement; , time and date, etc.; realize the monitoring of the upper computer.

(6) High reliability

Since the function of the system is to realize the real-time monitoring of relevant parameters in the dormitory and transmit them to the remote PC for display in real time, the communication between each unit node and the host computer is very frequent. Therefore, it is necessary to improve the reliability of signal transmission during the signal transmission process. With the development of 4G technology, WLAN technology is also attracting people's attention, and Wi-Fi technology has gradually become the focus of everyone's attention. The Wi-F transmission technology is selected as the wireless communication technology for data transmission. This technology has a long transmission distance and wide coverage; because no wiring is required, the cost is low; the Wi-Fi transmission power is small and the security is strong.

(7) Good fault tolerance

Each terminal node in the system can guarantee to work independently, even if the hardware monitoring module of one of the nodes fails, it will not affect the operation of other units and the overall system.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the system disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related information, please refer to the description of the method part.

In this paper, specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to the present invention Thoughts, there will be changes in specific implementation methods and application ranges. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. a kind of students' dormitory safety monitoring system, which is characterized in that including：Microcontroller, power/energy measuring circuit, temperature Measuring circuit, Smoke Detection circuit, clock circuit, tension measuring circuit, display circuit, warning circuit, gsm module, relay Output circuit, storage circuit and host computer；

It is the power/energy measuring circuit, the temperature measuring circuit, the Smoke Detection circuit, the clock circuit, described Tension measuring circuit, the warning circuit, the gsm module, the outputting circuit for relay, described is deposited the display circuit Storing up electricity road and the host computer are connect with the microcontroller respectively；The students' dormitory safety monitoring system is mounted on each place In house, for monitoring the safety of the dormitory in each dormitory.

2. dormitory safety monitoring system according to claim 1, which is characterized in that the power/energy measuring circuit tool Body includes：Resistance, capacitance, computation chip, voltage-stabiliser tube, varistor, the first circuit of three-terminal voltage-stabilizing integrated, photoelectrical coupler and Crystal oscillator；

The resistance includes i resistance, 0 i≤26 ＜；The capacitance includes j capacitance, 0 j≤16 ＜；

First resistor to twelfth resistor is connected, and resistance series string is obtained；The resistance series string respectively with the 12nd capacitance extremely 14th capacitance and thirteenth resistor obtain string in parallel to the 14th resistor coupled in parallel；The string in parallel and the computation chip It is connected；21st resistance is connect with the 11st capacitance and the computation chip respectively；22nd resistance is respectively with 12 capacitances and computation chip connection；Copper-manganese resistor coupled in parallel is in the 21st resistance and the 22nd resistance Between；

The voltage-stabiliser tube is in parallel with the varistor；First capacitance, the 23rd resistance and the voltage-stabiliser tube are connected on one It rises；The voltage-stabiliser tube, the second capacitance to the 5th capacitance, first circuit of three-terminal voltage-stabilizing integrated, the 15th capacitance and the tenth Six capacitances are connected in parallel；The first diode is equipped between the voltage-stabiliser tube and second capacitance；4th capacitance and the 5th electricity The 24th resistance is equipped between appearance；

The computation chip is connected with photoelectrical coupler；The photoelectrical coupler is connected with the 26th resistance；The light Electric coupler is also connected with light emitting diode；The light emitting diode is connected with the 25th resistance；The computation chip It is connected respectively with the crystal oscillator and the 9th capacitance；9th capacitance and the series connection of the tenth capacitance.

3. dormitory safety monitoring system according to claim 1, which is characterized in that the temperature measuring circuit specifically wraps It includes：Temperature sensor and the 34th resistance；

The temperature sensor and the 34th resistor coupled in parallel.

4. dormitory safety monitoring system according to claim 1, which is characterized in that the outputting circuit for relay specifically wraps It includes：Two relay output modules；

The relay output module includes diode, triode and resistance；

The emitter of the triode is connected with the diode；The grounded collector of the triode；The triode Base stage is connected with the resistance.

5. dormitory safety monitoring system according to claim 1, which is characterized in that the tension measuring circuit specifically wraps It includes：Twin coil, rectifier bridge, converter, the second circuit of three-terminal voltage-stabilizing integrated and the 17th capacitance to the 20th capacitance；

The twin coil is connected with the rectifier bridge；Second circuit of three-terminal voltage-stabilizing integrated and the 17th capacitance in parallel with And the 18th capacitance be connected；Second circuit of three-terminal voltage-stabilizing integrated also with the 19th capacitance in parallel and the 20th capacitance It is connected.

6. dormitory safety monitoring system according to claim 1, which is characterized in that the warning circuit specifically includes：Three Pole pipe, buzzer and resistance；

The emitter of the triode is connected with power supply；The collector of the triode is connected with the buzzer；It is described The base stage of triode is connected with the resistance.

7. dormitory safety monitoring system according to claim 1, which is characterized in that the storage circuit specifically includes：It deposits Memory device, the 31st resistance and the 32nd resistance；

31st resistance is connected with the distinct interface of the memory device respectively with the 32nd resistance.

8. a kind of students' dormitory method for safety monitoring, which is characterized in that the monitoring system includes：Microcontroller, power/energy are surveyed Measure circuit, temperature measuring circuit, Smoke Detection circuit, clock circuit, tension measuring circuit, display circuit, warning circuit, GSM Module, outputting circuit for relay, storage circuit and host computer；The power/energy measuring circuit, the temperature measure electricity Road, the Smoke Detection circuit, the clock circuit, the tension measuring circuit, the display circuit, the warning circuit, The gsm module, the outputting circuit for relay, the storage circuit and the host computer connect with the microcontroller respectively It connects；The students' dormitory safety monitoring system is mounted in each dormitory, for monitoring the safety of the dormitory in each dormitory；

The monitoring method includes：

Obtain the current temperature value of each dormitory；

Judge whether the current temperature value exceeds temperature threshold, obtains the first judging result；

If first judging result, which is expressed as the current temperature value, exceeds temperature threshold, alarm is sent out；

If first judging result is expressed as the current temperature value without departing from temperature threshold, the smog for obtaining each dormitory is dense Angle value；

Judge whether the smokescope value exceeds smoke density threshold value, obtains the second judging result；

If second judging result, which is expressed as the smokescope value, exceeds smoke density threshold value, alarm is sent out；

If second judging result is expressed as the smokescope value without departing from smoke density threshold value, the use of each dormitory is obtained Electric energy；

The electric power of each dormitory is calculated according to the electricity consumption electric energy；

Judge whether the electric power exceeds Power Safe value, obtains third judging result；

If the third judging result, which is expressed as the electric power, exceeds Power Safe value, to beyond the corresponding of Power Safe value Dormitory powers off and dormitory information is sent to client；The client includes host computer and dormitory management care workers Mobile phone.