CN102426739B - Wireless intelligent door magnet system and operating method - Google Patents
Wireless intelligent door magnet system and operating method Download PDFInfo
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- CN102426739B CN102426739B CN 201110271691 CN201110271691A CN102426739B CN 102426739 B CN102426739 B CN 102426739B CN 201110271691 CN201110271691 CN 201110271691 CN 201110271691 A CN201110271691 A CN 201110271691A CN 102426739 B CN102426739 B CN 102426739B
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Abstract
The invention discloses a wireless intelligent door magnet system and an operating method. The system comprises a power supply module, a door magnet induction switch module, a central processing module, a radio frequency modulating and transmitting module and a low voltage detection module, wherein the door magnet induction switch module comprises a magnetic reed switch and a light touch button; the central processing module is connected with the low voltage detection module; a control interface of the central processing module is connected with a controlled interface of the radio frequency modulating and transmitting module to form a control bus, and a data transmitting interface of the central processing module is connected with a data input interface of the radio frequency modulating and transmitting module to form a data bus; the central processing module samples the status of the magnetic reed switch through a first sampling interface; the central processing module samples the current status of the light touch button through a second sampling interface; and the central processing module is provided with a timer, and the timer is provided with fixed time and overtime awakening information. Through the invention, the security of the door magnet system can be improved.
Description
Technical Field
The invention relates to the field of security and protection, in particular to a wireless intelligent door sensor system and a working method.
Background
The door magnet is a security device for detecting whether a door, a window, etc. is illegally opened or moved. Once someone opens the door or window illegally, the door magnet and the magnet will displace and the alarm signal will be transmitted to the receiving end in the hand of the owner.
The conventional door sensor can transmit only a single signal, i.e., a door and window opening signal. The anti-theft device can not play a good anti-theft role and can not detect and send signals of the opening and closing states of doors and windows. In addition, the unclosed doors and windows can cause the houses to be eroded by wind and rain when the houses are blown by wind and rain.
The existing wireless door sensor is powered by a disposable battery, and the battery needs to be replaced regularly to ensure the normal work of the door sensor. However, the existing wireless door sensor is not provided with a battery low-voltage detection circuit, and people generally cannot pay attention to the working state of the door sensor, so that the battery cannot be replaced in time by people under the condition of low voltage or no voltage of the door sensor, and potential safety hazards exist.
Disclosure of Invention
The invention mainly solves the technical problem of providing a wireless intelligent door sensor system and a working method thereof, which can detect the states of doors, windows and the door sensor system in real time and send prompt information in time when the states change.
In order to solve the technical problems, the invention adopts a technical scheme that: the wireless intelligent door sensor system comprises a power supply module, a door sensor switch module, a central processing module, a radio frequency modulation transmitting module and a low voltage detection module; the door magnetic induction switch module comprises a magnetic reed switch and a light touch button; the central processing module comprises a control interface, a data sending interface, a first sampling interface and a second sampling interface; the radio frequency modulation transmitting module comprises a controlled interface and a data input interface; the central processing module is connected with the low-voltage detection module; the low voltage detection module is used for detecting the working voltage of the central processing module and judging whether the central processing module works in a low voltage state or not; the first sampling interface of the central processing module is connected with the reed switch to sample the current state of the reed switch, and the second sampling interface of the central processing module is connected with the light touch button to sample the current state of the light touch button; the central processing module is also provided with a timer, and the timer is provided with timing and overtime awakening information; the control interface of the central processing module is connected with the controlled interface of the radio frequency modulation transmitting module; the data transmission interface of the central processing module is connected with the data input interface of the radio frequency modulation transmitting module; the central processing module also comprises an encryption unit used for encrypting the data sent to the radio frequency modulation module through the data sending interface.
The control interface of the central processing module is connected with the controlled interface of the radio frequency modulation transmitting module through a control bus, and the data sending interface of the central processing module is connected with the data input interface of the radio frequency modulation transmitting module through a sending data bus; the control bus controls the working state of the radio frequency modulation transmitting module, and the data transmitting bus transmits the modulation data processed by the central processing module to the radio frequency modulation transmitting module.
The low-voltage detection module comprises a comparator and a reference voltage source, wherein the comparator comprises a first input port, a second input port and a detection voltage output port; the negative pole of the reference voltage source is connected with the first input port of the comparator, and the positive pole of the reference voltage source is grounded; and a second input port of the comparator is connected with a voltage output port of the central processing module, and a detection voltage output port of the comparator is connected with a voltage input port of the central processing module.
Wherein the low voltage detection module is integrated in the central processing module.
The central processing module is provided with a timer, and the timer is provided with timing and overtime awakening information.
The wireless intelligent door sensor system further comprises an indicator light module; the central processing module further comprises a first output port; the indicator light module is connected with a first output port of the central processing module.
In order to solve the technical problem, the invention adopts another technical scheme that: the working method of the wireless intelligent door sensor system is provided, and comprises the following steps:
201. after the system is powered on, the central processing module enters a common working mode;
203. the central processing module outputs voltage to the low-voltage detection module through a voltage output port for detection;
204. judging whether the timer is overtime, if yes, directly entering step 207 from step 204; if not, go to step 205;
205. the central processing module samples the current state of the magnetic reed switch through a first sampling interface and judges whether the current state is the same as the state stored before sleep;
if yes, go to step 206; if not, go to step 207;
206. the central processing module samples the current light touch button state through a second sampling interface and whether the light touch button state is conducted or not;
if yes, go to step 207; if not, go to step 211;
207. the central processing module controls the radio frequency modulation transmitting module to be in an activation mode;
208. the central processing module sends modulation data to the radio frequency modulation transmitting module, wherein the modulation data comprises a detection result of the low voltage detection module, a state of the reed switch and a state of the light touch button;
the modulated data is encrypted;
209. preparing before sleeping, and storing the state of a magnetic reed switch;
210. the central processing module controls the radio frequency modulation transmitting module to be in a power-off mode;
211. the central processing module enables the low voltage detection module to be in a power-saving mode;
213. the central processing module sets a wake-up mode;
214. the central processing module sets the overtime awakening time of the timer;
215. the central processing module enters a sleep power-saving mode;
216. the central processing module is awakened from the power saving mode when the awakening condition is met, and the step 201 is returned;
the wake-up condition is that a timer is overtime or the input IO state of the central processing module is changed.
Wherein, step 202 is further included between step 201 and step 203: the central processing module controls the first output port to light the indication;
the method also comprises a step 212 between the step 211 and the step 213: the central processing module closes the indicator light by controlling the first output port.
The invention has the beneficial effects that: different from the prior art that the wireless door sensor does not transmit the signals for displaying the working state of the door sensor, and potential safety hazards exist, the wireless intelligent door sensor system disclosed by the invention has the advantages that the central processing module outputs voltage to the low-voltage detection module through the voltage output port to detect, the first sampling interface samples the current state of the magnetic reed switch, the second sampling interface samples the current state of the light touch button, and the data sending interface sends the modulation data to the radio-frequency modulation transmitting module, so that the functions of wirelessly sending the modulation data which comprises the ID number of the current door sensor, the state information of the current front door, the state of the current battery cover and whether the current door sensor works in the low-voltage state and is encrypted by rolling codes are realized when the state of the door changes or the battery cover is opened. The user can timely know the state of the door and the state of the door magnet so as to deal with the possible abnormal conditions; when the battery cover is opened or the battery voltage is insufficient, a user can take corresponding measures according to the received information to ensure the normal use of the door sensor; and the modulated data are encrypted in transmission, so that the safety of the data is ensured, the wireless intelligent door sensor also sets the overtime of a timer, awakens the door sensor regularly and sends the modulated data, and controls a third output port to control an indicator lamp module to display through the central processing module regularly, so that a user can know whether the door sensor works normally and whether a battery is in a low-voltage working state regularly and deal with corresponding problems timely.
Drawings
FIG. 1 is a block diagram of an embodiment of a wireless intelligent door sensor system of the present invention;
FIG. 2 is a flow chart of the working method of the wireless intelligent door sensor system of the invention;
wherein,
a is a second input port of the comparator of the low-voltage detection module;
c is a detection voltage output port of a comparator of the low voltage detection module;
b is a voltage output port of the central processing module;
d is a voltage input port of the central processing module;
m is a control interface of the central processing module;
k is a data sending interface of the central processing module;
e is a first sampling interface of the central processing module;
r is a second sampling interface of the central processing module;
p is a first output port of the central processing module;
h is a power supply pin of the central processing module;
f is a grounding pin of the central processing module;
n is a controlled interface of the radio frequency modulation transmitting module;
l is a data input interface of the radio frequency modulation transmitting module;
i is a power supply pin of the radio frequency modulation transmitting module;
g is a grounding pin of the radio frequency modulation transmitting module.
Detailed Description
In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the present invention relates to a wireless intelligent door sensor, which includes a power module, a door sensor switch module, a central processing module, a radio frequency modulation transmission module, and a low voltage detection module; the door magnetic induction switch module comprises a magnetic reed switch and a light touch button; the central processing module comprises a control interface M, a data sending interface K, a first sampling interface E and a second sampling interface R; the radio frequency modulation transmitting module comprises a controlled interface N and a data input interface L; the central processing module is connected with the low-voltage detection module; the low voltage detection module is used for detecting the working voltage of the central processing module and judging whether the central processing module works in a low voltage state or not; the central processing module first sampling interface E is connected with the reed switch to sample the current state of the reed switch, and the central processing module second sampling interface R is connected with the light touch button to sample the current state of the light touch button; the central processing module is also provided with a timer, and the timer is provided with timing and overtime awakening information; the control interface M of the central processing module is connected with the controlled interface N of the radio frequency modulation transmitting module; the data transmission interface K of the central processing module is connected with the data input interface L of the radio frequency modulation transmitting module; the central processing module also comprises an encryption unit used for encrypting the data sent to the radio frequency modulation module through the data sending interface.
In one embodiment, the control interface M of the central processing module is connected to the controlled interface N of the radio frequency modulation transmission module through a control bus, and the data transmission interface K of the central processing module is connected to the data input interface L of the radio frequency modulation transmission module through a transmission data bus; the control bus controls the working state of the radio frequency modulation transmitting module, and the data transmitting bus transmits the modulation data processed by the central processing module to the radio frequency modulation transmitting module. The central processing module is also provided with a timer, and the timer is provided with timing and overtime awakening information. The central processing module can be controlled to send related data at regular time after the set time, so that a user can know the door magnetism information at regular time; if the central processing module does not send data after time out, the user can notice that the door sensor system possibly works abnormally, and then manually remove the abnormal condition, so that the reliability is increased.
The central processing module further comprises a voltage output port B and a voltage input port D, the low-voltage detection module comprises a comparator and a reference voltage source, and the comparator comprises a first input port, a second input port A and a detection voltage output port C; the negative pole of the reference voltage source is connected with the first input port of the comparator, and the positive pole of the reference voltage source is grounded; and a second input port A of the comparator is connected with a voltage output port of the central processing module, and a detection voltage output port C of the comparator is connected with a voltage input port of the central processing module. A voltage output port B of the central processing module outputs detection voltage to the low-voltage detection module for detection; when the voltage value output by the central processing module is lower than the detection voltage comparison value of the low-voltage detection module, the output value of a detection voltage output port C of the low-voltage detection module is 0V, and the central processing module works in a low-voltage state; when the voltage value output by the central processing module is higher than or equal to the detection voltage comparison value of the low-voltage detection module, the output value of the low-voltage detection module detection voltage output port C is equal to the voltage value output by the central processing module, and at the moment, the central processing module works in a normal state; and the voltage comparison value of the low-voltage detection module is the value of the reference voltage source.
In another embodiment, the low voltage detection module may be integrated into the central processing module, and directly internally determine whether the central processing module operates in a low voltage state and generate a corresponding signal.
Referring to fig. 1, in this embodiment, the wireless intelligent door sensor system further includes an indicator light module; the central processing module further comprises a first output port P; the indicator light module is connected with a first output port P of the central processing module. The indicating lamp can indicate the relevant information of the door magnetic information according to the control instruction of the central processing module, for example, when the battery is too low and needs to be replaced, the indicating lamp can display red light or twinkle and the like according to a preset mode, so that a user can timely deal with corresponding problems.
Please refer to fig. 2, which is a flowchart of a working method of the wireless intelligent door sensor system according to the present invention, including the following steps:
201. and after the system is powered on, the central processing module enters a common working mode.
202. The central processing module controls the first output port to light an indicator light;
and the central processing module enables the first output port P to be at a high level, and then lights up the indicator lamp.
203. The central processing module outputs voltage to the low-voltage detection module through a voltage output port for detection;
a second input port A in the low-voltage detection module is used as detection voltage input, a detection voltage output port C is used as detection voltage output, when the voltage of A is larger than the detectable voltage, the voltage of C is approximately equal to the voltage of A, and at the moment, C is high level; when the voltage of A is smaller than the detectable voltage, the voltage of C is 0V, and C is at a low level, which indicates that the battery voltage is in a low-voltage state; and the voltage comparison value of the low-voltage detection module is the value of the reference voltage source.
204. Judging whether the timer is overtime;
if yes, go to step 207; if not, go to step 205.
205. The central processing module samples the current state of the magnetic reed switch through a first sampling interface and judges whether the current state is the same as the state stored before sleep;
if yes, go to step 206; if not, go to step 207.
206. The central processing module samples the current light touch button state through a second sampling interface and whether the light touch button state is conducted or not;
if yes, go to step 207; if not, go to step 211.
207. The central processing module controls the radio frequency modulation transmitting module to be in an activation mode.
208. The central processing module sends modulation data to the radio frequency modulation transmitting module, wherein the modulation data comprises a detection result of the low voltage detection module, a state of the reed switch and a state of the light touch button;
the modulation data comprise an ID number of the wireless intelligent door magnetic system, current state information of the magnetic reed switch, current state information of the light touch button, current information of whether the wireless intelligent door magnetic system works in a low-voltage state or not and current information of whether the wireless intelligent door magnetic system is timer overtime awakening information or not; the modulated data is encrypted.
209. Preparing before sleeping, and storing the state of the reed switch.
210. And the central processing module controls the radio frequency modulation transmitting module to be in a power-off mode.
211. The central processing module makes the low voltage detection module be in a power saving mode.
212. The central processing module turns off the indicator light through the first output port P.
213. The central processing module sets a wake-up mode.
214. And the central processing module sets the overtime awakening time of the timer.
215. The central processing module enters a sleep power saving mode.
216. If the wake-up condition is satisfied, the central processing module is woken up from the power saving mode, and the step 201 is returned;
the awakening condition is that a timer is overtime or the input IO state of the central processing module is changed.
When the wireless intelligent door magnet system is used, the wireless intelligent door magnet system is arranged on the door frame, and the magnet is arranged on the door; the light touch button is connected with the battery cover, and the opening or closing of the battery cover can control the on or off of the light touch button, so that the light touch button is used for sampling the current state of the battery cover of the door magnetic system. When the door is opened or the battery cover is opened, the door magnet system immediately sends modulated data which comprises the ID number of the current door magnet, the state information of the current front door, the state of the current battery cover, whether the current door magnet works in a low-voltage state or not and whether the current wireless intelligent door magnet system is a timer timeout wake-up message and encrypted by rolling codes to a handheld terminal of a client, so that the user can know the door magnet information at regular time, and great guarantee is provided for the safety of houses and family members.
In the wireless intelligent door sensor system, a central processing module outputs voltage to a low-voltage detection module through a voltage output port to detect, a first sampling interface samples the current state of a magnetic reed switch, a second sampling interface samples the current state of a light touch button, and a data sending interface sends modulated data to a radio frequency modulation transmitting module, so that the wireless intelligent door sensor system realizes the function of wirelessly sending modulated data which comprises the ID number of the current door sensor, the state information of the current front door, the state of a current battery cover and whether the current door sensor works in a low-voltage state and is encrypted by rolling codes when the state of the door changes or the battery cover is opened. The user can timely know the state of the door and the state of the door magnet so as to deal with the possible abnormal conditions; when the battery cover is opened or the battery voltage is insufficient, a user can take corresponding measures according to the received information to ensure the normal use of the door sensor; and the modulated data is encrypted in transmission, so that the safety of the data is ensured. The wireless intelligent door sensor is also provided with a timer for overtime, the door sensor is awakened regularly and modulated data is sent, and the third output port is controlled by the central processing module to control the indication lamp module to display regularly, so that a user can know regularly whether the door sensor works normally and whether a battery is in a low-voltage working state, and corresponding problems are handled timely.
In addition, the low voltage detection module can also be integrated in the central processing module, and then the same technical effect can be achieved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a wireless intelligent door magnetic system which characterized in that:
the system comprises a power supply module, a door magnetic induction switch module, a central processing module, a radio frequency modulation transmitting module and a low voltage detection module; the door magnetic induction switch module comprises a magnetic reed switch and a light touch button; the central processing module comprises a control interface, a data sending interface, a first sampling interface and a second sampling interface; the radio frequency modulation transmitting module comprises a controlled interface and a data input interface;
the central processing module is connected with the low-voltage detection module; the low voltage detection module is used for detecting the working voltage of the central processing module and judging whether the central processing module works in a low voltage state or not;
the first sampling interface of the central processing module is connected with the reed switch to sample the current state of the reed switch, and the second sampling interface of the central processing module is connected with the light touch button to sample the current state of the light touch button; the central processing module is also provided with a timer, and the timer is provided with timing and overtime awakening information;
the control interface of the central processing module is connected with the controlled interface of the radio frequency modulation transmitting module; the data transmission interface of the central processing module is connected with the data input interface of the radio frequency modulation transmitting module; the central processing module also comprises an encryption unit used for encrypting the data sent to the radio frequency modulation transmitting module through the data sending interface;
the matching mode of the system module is as follows:
201. after the system is powered on, the central processing module enters a common working mode;
203. the central processing module outputs voltage to the low-voltage detection module through a voltage output port for detection;
204. judging whether the timer is overtime, if yes, turning to execute 207; if not, go to execute 205;
205. the central processing module samples the current state of the magnetic reed switch through a first sampling interface and judges whether the current state is the same as the state stored before sleep;
if yes, go to 206; if not, execute 207;
206. the central processing module samples the current light touch button state through a second sampling interface and whether the light touch button state is conducted or not;
if yes, execute 207; if not, 211 is executed;
207. the central processing module controls the radio frequency modulation transmitting module to be in an activation mode;
208. the central processing module sends modulation data to the radio frequency modulation transmitting module, wherein the modulation data comprises a detection result of the low voltage detection module, a state of the reed switch and a state of the light touch button;
the modulated data is encrypted;
209. preparing before sleeping, and storing the state of a magnetic reed switch;
210. the central processing module controls the radio frequency modulation transmitting module to be in a power-off mode;
211. the central processing module enables the low voltage detection module to be in a power-saving mode;
213. the central processing module sets a wake-up mode;
214. the central processing module sets the overtime awakening time of the timer;
215. the central processing module enters a sleep power-saving mode;
216. if the awakening condition is met, the central processing module is awakened from the power saving mode, and the operation returns to 201;
the awakening condition is that a timer is overtime or the input IO state of the central processing module is changed.
2. The wireless intelligent door sensor system according to claim 1, wherein:
the control interface of the central processing module is connected with the controlled interface of the radio frequency modulation transmitting module through a control bus, and the data transmitting interface of the central processing module is connected with the data input interface of the radio frequency modulation transmitting module through a transmitting data bus; the control bus controls the working state of the radio frequency modulation transmitting module, and the data transmitting bus transmits the modulation data processed by the central processing module to the radio frequency modulation transmitting module.
3. The wireless intelligent door sensor system according to claim 1, wherein:
the central processing module further comprises a voltage output port and a voltage input port, the low-voltage detection module comprises a comparator and a reference voltage source, and the comparator comprises a first input port, a second input port and a detection voltage output port; the negative pole of the reference voltage source is connected with the first input port of the comparator, and the positive pole of the reference voltage source is grounded; and a second input port of the comparator is connected with a voltage output port of the central processing module, and a detection voltage output port of the comparator is connected with a voltage input port of the central processing module.
4. The wireless intelligent door sensor system according to claim 1, wherein:
the low voltage detection module is integrated in the central processing module.
5. The wireless intelligent door sensor system according to any one of claims 1 to 4, wherein:
the wireless intelligent door sensor system also comprises an indicator light module; the central processing module further comprises a first output port;
the indicator light module is connected with a first output port of the central processing module.
6. The working method of the wireless intelligent door sensor system according to claim 1, characterized by comprising the following steps:
201. after the system is powered on, the central processing module enters a common working mode;
203. the central processing module outputs voltage to the low-voltage detection module through a voltage output port for detection;
204. judging whether the timer is overtime, if yes, directly entering step 207 from step 204; if not, go to step 205;
205. the central processing module samples the current state of the magnetic reed switch through a first sampling interface and judges whether the current state is the same as the state stored before sleep;
if yes, go to step 206; if not, go to step 207;
206. the central processing module samples the current light touch button state through a second sampling interface and whether the light touch button state is conducted or not;
if yes, go to step 207; if not, go to step 211;
207. the central processing module controls the radio frequency modulation transmitting module to be in an activation mode;
208. the central processing module sends modulation data to the radio frequency modulation transmitting module, wherein the modulation data comprises a detection result of the low voltage detection module, a state of the reed switch and a state of the light touch button;
the modulated data is encrypted;
209. preparing before sleeping, and storing the state of a magnetic reed switch;
210. the central processing module controls the radio frequency modulation transmitting module to be in a power-off mode;
211. the central processing module enables the low voltage detection module to be in a power-saving mode;
213. the central processing module sets a wake-up mode;
214. the central processing module sets the overtime awakening time of the timer;
215. the central processing module enters a sleep power-saving mode;
216. if the wake-up condition is satisfied, the central processing module is woken up from the power saving mode, and the step 201 is returned;
the awakening condition is that a timer is overtime or the input IO state of the central processing module is changed.
7. The method of claim 6, wherein:
step 202 is further included between step 201 and step 203: the central processing module controls the first output port to light the indicator lamp;
the method also comprises a step 212 between the step 211 and the step 213: the central processing module closes the indicator light by controlling the first output port.
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| CN 201110271691 CN102426739B (en) | 2011-09-14 | 2011-09-14 | Wireless intelligent door magnet system and operating method |
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| CN 201110271691 CN102426739B (en) | 2011-09-14 | 2011-09-14 | Wireless intelligent door magnet system and operating method |
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| CN102426739B true CN102426739B (en) | 2013-12-18 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102831666A (en) * | 2012-09-07 | 2012-12-19 | 重庆大学 | Recording device for opening state of door and window |
| CN103839354A (en) * | 2014-03-25 | 2014-06-04 | 文江湖 | Wireless detector, guard against theft and alarm system, routing inspection method and low voltage detection method |
| CN105427562A (en) * | 2015-11-26 | 2016-03-23 | 北京奇虎科技有限公司 | Communication method and system for door sensor device and response device |
| CN113053050A (en) * | 2021-03-31 | 2021-06-29 | 湖南茴香智能科技有限公司 | Single door magnetic device |
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| JP3991924B2 (en) * | 2003-05-27 | 2007-10-17 | 松下電工株式会社 | Transmitter |
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| US6737969B2 (en) * | 2001-11-27 | 2004-05-18 | Ion Digital Llp | Wireless security sensor systems for windows and doors |
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| CN102426739A (en) | 2012-04-25 |
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