Energy-saving control method for wireless low-power-consumption communication belt emergency switch of Internet of Things

Abstract

The invention relates to an energy-saving control method of an internet of things wireless low-power-consumption communication belt emergency switch, which comprises a main sensor for human body induction, a plurality of auxiliary sensors and a central controller switch S, when a plurality of auxiliary sensors sense people, a central controller switch S is reported to turn on a power supply, and countdown of the main sensor is eliminated to turn off the power supply function; a plurality of auxiliary human body induction sensors B-F do not immediately communicate and report when inducting someone, but immediately communicate and report when inducting someone for the first time, then are triggered for many times later, and report states are linked after a certain time is delayed, so that low-power-consumption operation is realized; the imaging focusing (Fresnel lens) of the main sensor A adopts a slit or semi-shielding method, so that the directivity of the sensor is good, and false triggering is avoided; in order to achieve humanized service, the central controller switch S designed in each room is provided with a'temporary going-out 'button, so that the'temporary going-out' function is achieved, the delay time increasing function is achieved, and the switching function of an emergency state is also achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent control digital information transmission, and in particular to an energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch. Background Art

[0002] In traditional hotels or apartments, the power supply in the room is usually controlled by inserting a card. However, this method requires guests to carry a room card and insert it into a specific card slot, which is inconvenient to operate and easy to lose the room card. With the development of intelligent technology, it is necessary to provide a more convenient way to get power without physical card insertion.

[0003] At present, the most common products in China are human body sensing communication trigger switches. The patent with authorization announcement number CN208477338U discloses a hotel cardless power switch, and the patent with authorization announcement number CN 217821322U discloses a hotel wireless cardless power device, etc., all of which have the following functional disadvantages: (1) high power consumption, power supply must be provided, wired, damage to existing decoration, and inconvenient installation; (2) temporary power off when going out, poor user experience; (3) no sensor failure emergency switch function, user experience is very bad; (4) poor human body sensing directionality at the door, resulting in false triggering. Therefore, the current market urgently needs to develop a new wireless low-power intelligent emergency switch control technology. Summary of the invention

[0004] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide an energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch, which realizes low-power operation by delaying the reporting status; adding a "temporary outing" switch can not only provide humanized service and increase the delay function; but also realize the emergency switch function; the imaging focus of the human body sensing sensor at the door adopts a slit or semi-shielding method, so that the sensor has good directionality to avoid false triggering.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] An energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch, comprising the following steps:

[0007] Step 1: A main sensor A is set at the entrance of each room, and auxiliary sensors B, C, D, etc. are set at other locations according to needs. The number can be increased or decreased according to specific circumstances. A central controller switch S is set on the wall at the entrance; the main sensor A and auxiliary sensor signals are sent to the central controller switch S, and the central controller switch S controls the on and off of the indoor power supply to achieve linkage control;

[0008] The main sensor A and the auxiliary sensor are both human body sensing sensors, wherein the auxiliary sensor immediately communicates and reports to the central controller switch S when it senses someone for the first time. Except for the first time, the subsequent triggers report the status to the central controller switch S after a delay time T / n to achieve linkage, n = 2, 3, T is the delay closing time set for the main sensor A trigger;

[0009] Step 2: Main sensor A will be triggered when entering or leaving the room. When a person enters the room, main sensor A will be triggered first, and the countdown function of central controller switch S will be started. Then, when the person goes deeper into the room, auxiliary sensors B, C, D, etc. will be randomly triggered. The trigger signals of auxiliary sensors B, C, D, etc. will turn off the countdown function of central controller switch S. Main sensor A outputs a switch signal indicating "open" and reports the result message to central controller switch S.

[0010] Step 3: After a person leaves the room, the main sensor A is triggered and the countdown function of the central controller switch S is started. When no one is in the room, the auxiliary sensors B, C, D, etc. are not triggered. The main sensor A reports the result message to the central controller switch S. After the preset countdown time ends, the central controller switch S outputs a switch signal indicating "off";

[0011] Step 4: After a person leaves the room, the main sensor A is triggered and the countdown function of the central controller switch S is started. If there is someone in the room at this time, other auxiliary sensors B, C, D, etc. are randomly triggered. The trigger signal of the auxiliary sensor causes the central controller switch S to turn off the countdown function.

[0012] Step 5: If you want to go out for a long time and do not want to shut down the electrical equipment in the room, press the "temporary outing" button of the central controller switch S. After pressing it, the delay time T implanted in the register of the central controller switch S is T 0 + User demand variable time, T 0 This is the basic delay time. After the person returns to the room and triggers other auxiliary sensors B, C, D... again, a new round of detection and judgment will begin again.

[0013] The specific control logic of the central controller switch S is: compare the upload time parameters (hours, minutes, seconds) of the main sensor A with the upload time parameters (hours, minutes, seconds) of other auxiliary sensors. If the upload time parameters (hours, minutes, seconds) of the main sensor A are earlier than the upload time parameters (hours, minutes, seconds) of the auxiliary sensor, the countdown is turned off; if the upload time parameters (hours, minutes, seconds) of the main sensor A are later than the upload time parameters (hours, minutes, seconds) of the auxiliary sensor, the countdown continues to execute the power off function.

[0014] The "temporary outing" button of the central controller switch S also has an emergency manual switch function. When the sensor fails and the power supply cannot be turned on according to normal logic, long press the "temporary outing" button for more than 3 seconds to manually turn on the power supply; long press the "temporary outing" button for more than 3 seconds again to manually turn off the power supply; specific algorithm: switch mechanical contact time timing t, time t<3s, execute the temporary leaving function, time t>3s, execute the emergency switch function control.

[0015] The main sensor A uses a slit or semi-shielded method for imaging, that is, a slit is added behind the Fresnel lens, a focusing imaging component of the main sensor A, or a part of the surface of the Fresnel lens is shielded.

[0016] The main sensor A also includes a door magnetic sensor.

[0017] The auxiliary sensors B, C, D... also include microwave radar sensors combined with radio frequency wireless communication to complete linkage control; the characteristic of radio frequency communication is broadcast mode, that is, sensors and central controller switch S devices within the coverage area can receive instructions through wireless communication.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) The main sensor A of the present invention is a low-power sensing device. It does not communicate and report immediately every time it senses a person. It communicates and reports immediately when it senses a person for the first time. Subsequent triggers collectively report the status after a delay time T / 2 to achieve linkage, thereby achieving low-power operation. It can operate for more than one year using three No. 7 batteries.

[0020] (2) For humanized service, an emergency switch S is added to the central controller switch S in each room to function as a "temporary out" button, realizing the function of increasing the delay time for "temporary out".

[0021] (3) The "temporary out" button of the central controller switch S in each room also has an emergency switch function. Pressing the temporary out button "S" for more than 3 seconds can realize the manual system power on function; pressing the temporary out button "S" for more than 3 seconds again can realize the manual power off function. The manual switch function in emergency state is realized.

[0022] (4) The imaging focus (Fresnel lens) of the main sensor A adopts a slit or half-shielding method to make the sensor directional and avoid false triggering.

[0023] In summary, the present invention realizes low-power operation by delaying the reporting status; adding a "temporary outing" switch can not only provide humanized service and increase the delay function; but also realize the emergency switch function; the imaging focus of the human body sensing sensor at the door adopts a slit or semi-shielding method to make the sensor have good directionality and avoid false triggering. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the indoor arrangement of the sensor and the central controller switch S of the present invention.

[0025] Figure 2 It is a control logic flow chart of the present invention.

[0026] Figure 3 Schematic diagram of the main sensor A of the present invention using a slit or semi-shielding method, wherein Figure 3 (a) is the semi-shielding method, Figure 3 (b) is the slit method.

[0027] Figure 4 This is a schematic diagram of the linkage function.

[0028] Figure 5 It is a relationship diagram between delayed power-off judgment and sensor trigger reporting timeline.

[0029] Figure 6 It is the circuit diagram of the central controller switch S.

[0030] Figure 7 is the circuit diagram of the sensor. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] An energy-saving control method for wireless low-power communication with emergency switch for Internet of Things, referring to Figure 2 , including the following steps:

[0033] Step 1. Reference Figure 1 A main sensor A is installed at the entrance of each room, and auxiliary sensors B~F are installed at other locations according to needs. The number can be increased or decreased according to specific circumstances. A central controller switch S is installed on the wall at the entrance; the signals of the main sensor A and auxiliary sensors B~F are sent to the central controller switch S, which controls the on and off of the indoor power supply through the central controller switch S to achieve linkage control;

[0034] Step 2: Main sensor A will be triggered when entering or leaving the room. When a person enters the room, main sensor A will be triggered first, and the countdown function of central controller switch S will be started. Then, when the person goes deeper into the room, auxiliary sensors B, C, D, etc. will be randomly triggered. The trigger signals of auxiliary sensors B, C, D, etc. will turn off the countdown function of central controller switch S. Main sensor A outputs a switch signal indicating "open" and reports the result message to central controller switch S.

[0035] Step 3: After a person leaves the room, the main sensor A is triggered and the countdown function of the central controller switch S is started. When no one is in the room, the auxiliary sensors B, C, D, etc. are not triggered. The main sensor A reports the result message to the central controller switch S. After the preset countdown time ends, the central controller switch S outputs a switch signal indicating "off";

[0036] Step 4: After a person leaves the room, the main sensor A is triggered and the countdown function of the central controller switch S is started. If there is someone in the room at this time, other auxiliary sensors B, C, D, etc. are randomly triggered. The trigger signal of the auxiliary sensor causes the central controller switch S to turn off the countdown function.

[0037] Step 5: If you want to go out for a long time and do not want to shut down the electrical equipment in the room, press the "temporary outing" button of the central controller switch S. After pressing, the register of the central controller switch S is implanted with a delay time T = T 0 + User demand variable time, T 0 This is the basic delay time. After the person returns to the room and triggers other auxiliary sensors B, C, D... again, a new round of detection and judgment will begin again.

[0038] The main sensor A and the auxiliary sensor are both human body sensing sensors, where the auxiliary sensor does not communicate and report immediately every time it senses a person, but immediately communicates and reports to the central controller switch S when it senses a person for the first time. Except for the first time, the subsequent triggers report the status to the central controller switch S after a delay time T / n to achieve linkage, n = 2, 3, T is the delay closing time set for the main sensor A trigger.

[0039] Reference Figure 5, is the ideal timeline, but in reality there will be asynchronous situations, such as delays. Using the strategy of "reporting time is less than half of the countdown time", it can be achieved that even if there is an asynchronous situation, it can be guaranteed that within a power failure countdown period T, at least the sensor can complete two reports and cancel the power failure countdown. Ideally, three reports can be completed. As long as any one of the two relatively reliable reports is received by the controller, the power failure countdown can be canceled. This serves as the second guarantee.

[0040] Reference Figure 7 The main sensor A and the auxiliary sensor have the same structure. The specific circuit includes a DC-DC buck-boost circuit 7, a pyroelectric infrared sensor circuit 8, an MCU circuit B9 and a radio frequency circuit B10. The input of the DC-DC buck-boost circuit 7 is connected to the output of three No. 7 batteries. The output of the DC-DC buck-boost circuit 7 is respectively connected to the power input end of each other circuit for power supply. The trigger output end of the pyroelectric infrared sensor circuit 8 is connected to the IO port input end of the MCU circuit B9. The MCU circuit B9 is connected to the radio frequency circuit B10 through the communication interface and the IO port; the radio frequency circuit B10 sends and receives related signals with the radio frequency circuit 2 of the central controller switch S.

[0041] The working principle of the sensor is as follows: the DC-DC step-up / step-down circuit 7 supplies power to other circuits. When the pyroelectric infrared sensor circuit 8 receives a human body signal, it is sent to the MCU circuit B 9 in a high-level manner after being processed by the pyroelectric infrared sensor circuit 8 logic. After being judged by the embedded software, the relevant data is sent to the radio frequency circuit B10. The radio frequency circuit B10 transmits the information in a radio frequency manner and is received by other corresponding radio frequency products (other sensors or central controller switch S). ​​The radio frequency circuit B10 is responsible for receiving the radio frequency signal sent by the corresponding external product and feeding back the relevant data to the MCU circuit B 9 for logical judgment. When no one triggers the pyroelectric infrared sensor circuit 8, the pyroelectric infrared sensor circuit 8 sends the information to the MCU circuit B 9 in a low-level manner for logical judgment.

[0042] The specific control logic of the central controller switch S is: compare the upload time parameters (hours, minutes, seconds) of the main sensor A with the upload time parameters (hours, minutes, seconds) of other auxiliary sensors. If the upload time parameters (hours, minutes, seconds) of the main sensor A are earlier than the upload time parameters (hours, minutes, seconds) of the auxiliary sensor, the countdown is turned off; if the upload time parameters (hours, minutes, seconds) of the main sensor A are later than the upload time parameters (hours, minutes, seconds) of the auxiliary sensor, the countdown continues to execute the power off function.

[0043] The "temporary outing" button of the central controller switch S also has an emergency manual switch function. When the sensor fails and the power supply cannot be turned on according to normal logic, long press the "temporary outing" button for more than 3 seconds to manually turn on the power supply; long press the "temporary outing" button for more than 3 seconds again to manually turn off the power supply; specific algorithm: switch mechanical contact time timing t, time t<3s, execute the temporary leaving function, time t>3s, execute the emergency switch function control.

[0044] The "temporary outing" button of the central controller switch S also has an emergency power supply function. When the sensor fails and the power supply cannot be turned on according to normal logic, long pressing the "temporary outing" button for more than 3 seconds can supply power; long pressing the "temporary outing" button for more than 3 seconds again will cut off the power supply; specific algorithm: the switch mechanical contact time timing t, time t<3s, execute the temporary leaving function, time t>3s, execute the emergency manual switch function control.

[0045] Reference Figure 6 The specific circuit of the central controller switch S includes a touch button function circuit 1, i.e., a "temporary outing" button, a radio frequency circuit 2, an MCU circuit 3, an indicator light circuit 4, an LDO power supply circuit 6 and a relay output circuit 5; the output end of the touch button circuit 1 is connected to the input end of the MCU circuit 3; the input end of the indicator light circuit 4 is connected to the output end of the MCU circuit 3; the input end of the relay output circuit 5 is connected to the output end of the MCU circuit 3, the LDO power supply circuit 6 is connected to the touch button function circuit 1, the radio frequency circuit 2, the MCU circuit 3, and the indicator light circuit 4, the weak current 12V DC input directly supplies power to the relay output circuit 5, and the output of the relay output circuit 5 is connected to the external device master control (such as the main control box of the building); the weak current 12V also supplies power to all other circuits through the LD0 circuit 6 voltage stabilization; the radio frequency circuit 2 sends and receives related signals with the radio frequency circuit B10 of the main sensor A and the auxiliary sensors B~F in the form of radio frequency.

[0046] The working principle of the central controller switch S is as follows: when a key is input, the "temporary out" key of the central controller switch S is lightly touched. At this time, the light-touch key circuit 1 outputs a high-level pulse to the MCU circuit 3. After the embedded software logic judgment of the MCU circuit 3, a high level is output to the indicator light circuit 4 and the relay output circuit 5 at the same time, and the relevant data is output to the radio frequency circuit 2. The indicator light circuit 4 that receives the high-level input lights up the corresponding indicator light, and the relay output circuit 5 that receives the high-level input closes the relay to complete the output. The radio frequency circuit 2 that receives the relevant data sends the relevant data to the outside in the form of radio frequency. At the same time, the radio frequency circuit 2 receives the data sent by other corresponding radio frequency products in the form of radio frequency, and transmits it to the MCU circuit 3 after conversion processing. After the embedded software determines, the corresponding high / low level is output to the remaining circuits for circuit function triggering.

[0047] The main sensor A adopts a slit or semi-shielding method, as shown in the following example: Figure 3 As shown, the main sensor A focuses the image through a Fresnel lens, and a slit is set behind the Fresnel lens, as shown in FIG. Figure 3 As shown in (b) in the figure, or the Fresnel lens surface is shielded with an appropriate area according to the scene requirements, such as Figure 3 As shown in (a), the image is focused on the infrared sensor 4, and the signal is transmitted to the central controller S through the output of the central processing unit 5 and the wireless communication module 6, so that the sensor has good directionality and avoids false triggering.

[0048] When the main sensor A is “on”, the whole room is powered normally; when the sensor A is “off”, the whole room is powered off to save energy.

[0049] Reference Figure 4 The main sensor A, auxiliary sensors B~F, and central controller switch S achieve linkage, which refers to a function initiated by the sensor device to associate with other device operations. The linkage function is mainly aimed at the mutual control of sensors in the local area network, and this function also supports use without the Internet; the linkage function mainly involves devices, which are divided into linkage initiators (devices) and linkage responders (devices). In the present invention, the main sensor A, auxiliary sensor B, and central controller switch S are both linkage initiators (devices) and linkage responders (devices). Since the linkage responders (linked devices) respond to the functions of their own devices, all devices can respond to being linked; devices with both initiator and responder functions can be associated at the same time; to realize the linkage function, the linkage initiator needs to be configured by the server or the local debugging computer (laptop computer) first, and the linkage responder does not need any configuration. The configuration content specifically includes the information and operation instructions of the linkage responder. After the configuration is completed, it can be used completely without the Internet; when in use, the linkage initiator triggers the linkage and issues a linkage instruction, and the linked device receives the linkage instruction and executes the instruction to complete the logic trigger communication control function of the present invention.

[0050] Description of the room vacancy detection solution:

[0051] This solution is based on the linkage function, and the main linkage sensor A can be either a human body induction sensor or a door magnetic sensor.

[0052] The auxiliary sensors B~F can be either human body sensing sensors or microwave radar sensors combined with radio frequency (Bluetooth, wifi, Zigbee, etc.) wireless communications; the characteristic of radio frequency (Bluetooth, wifi, Zigbee, etc.) communication is the broadcast mode, that is, the sensors and central controller switch S devices within the coverage range can receive instructions through wireless communication.

[0053] In summary, the overall idea of ​​the present invention is: it includes a main sensor A for human body sensing, multiple auxiliary sensors B~F, and a central controller switch S; the main sensor A detects someone and reports to the controller to turn on the power and start the countdown to turn off the power. Multiple auxiliary sensors B~F sense people and report to the central controller switch S to turn on the power and clear the countdown to turn off the power; the system as a whole is low-power operation, so multiple auxiliary human body sensing sensors B~F do not communicate and report immediately when they sense someone, but communicate and report immediately when they sense someone for the first time, and then trigger multiple times to report the status after a certain delay to achieve linkage, thereby achieving low-power operation; the main sensor A imaging focus (Fresnel lens) adopts a slit or semi-shielding method to make the sensor directional and avoid false triggering; for humanized service, the central controller switch S designed in each room of the present invention is a "temporary out" button to realize the function of increasing the delay time for "temporary out"; when there is a problem with the sensor or the entire system, the "temporary out" button of the central controller switch S also has an emergency switch function. Long pressing the temporary going out button "S" for more than 3 seconds can realize the system power supply function; long pressing the temporary going out button "S" for more than 3 seconds again can realize the power supply cut-off function and realize the emergency switch function.

Claims

1. An energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch, characterized in that: The following steps are involved: Step 1: A main sensor A is set at the entrance of each room, and auxiliary sensors B, C, D, etc. are set at other locations according to needs. The number can be increased or decreased according to specific circumstances. A central controller switch S is set on the wall at the entrance; the main sensor A and auxiliary sensor signals are sent to the central controller switch S, and the central controller switch S controls the on and off of the indoor power supply to achieve linkage control; The main sensor A and the auxiliary sensor are both human body sensing sensors, wherein the auxiliary sensor immediately communicates and reports to the central controller switch S when it senses someone for the first time. Except for the first time, the subsequent triggers report the status to the central controller switch S after a delay time T / n to achieve linkage, n = 2, 3, T is the delay closing time set for the main sensor A trigger; Step 2: Main sensor A will be triggered when entering or leaving the room. When a person enters the room, main sensor A will be triggered first, and the countdown function of central controller switch S will be started. Then, when the person goes deeper into the room, auxiliary sensors B, C, D, etc. will be randomly triggered. The trigger signals of auxiliary sensors B, C, D, etc. will turn off the countdown function of central controller switch S. Main sensor A outputs a switch signal indicating "on" and reports the result message to central controller switch S. Step 3: After a person leaves the room, the main sensor A is triggered and the countdown function of the central controller switch S is started. When no one is in the room, the auxiliary sensors B, C, D, etc. are not triggered. The main sensor A reports the result message to the central controller switch S. After the preset countdown time ends, the central controller switch S outputs a switch signal indicating "off"; Step 4: After a person leaves the room, the main sensor A is triggered and the countdown function of the central controller switch S is started. If there is someone in the room at this time, other auxiliary sensors B, C, D, etc. are randomly triggered. The trigger signal of the auxiliary sensor causes the central controller switch S to turn off the countdown function. Step 5: If you need to go out for a long time and do not want to shut down the electrical equipment in the room, press the "temporary outing" button of the central controller switch S. After pressing it, the register of the central controller switch S will be implanted with a delay time T = T0 + user required variable time. T0 is the basic delay time. After the person returns to the room, other auxiliary sensors B, C, D... will be triggered again, and a new round of detection and judgment will start again.

2. According to claim 1, an energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch, characterized in that: The specific control logic of the central controller switch S is: the time parameters (hours, minutes, seconds) uploaded by the main sensor A are compared with the time parameters (hours, minutes, seconds) uploaded by other auxiliary sensors. If the time parameters (hours, minutes, seconds) of the main sensor A are earlier than those of the auxiliary sensor, the countdown is turned off; if the time parameters (hours, minutes, seconds) of the main sensor A are later than those of the auxiliary sensor, the countdown continues to execute the power off function.

3. According to claim 1, an energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch, characterized in that: The "temporary out" button of the central controller switch S also has an emergency manual switch function. When the sensor fails and the power supply cannot be turned on according to normal logic, long press the "temporary out" button for more than 3 seconds to manually turn on the power supply; long press the "temporary out" button for more than 3 seconds again to manually turn off the power supply; specific algorithm: switch mechanical contact time timing t, time t<3s, execute the temporary leaving function, time t>3s, execute the emergency switch function control.

4. According to claim 1, an energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch, characterized in that: The main sensor A uses a slit or semi-shielded method for imaging, that is, a slit is added behind the Fresnel lens, a focusing imaging component of the main sensor A, or a part of the surface of the Fresnel lens is shielded.

5. The energy-saving control method of an Internet of Things wireless low-power communication with an emergency switch according to claim 1 is characterized in that: The main sensor A also includes a door magnetic sensor.

6. The energy-saving control method for an Internet of Things wireless low-power communication with an emergency switch according to claim 1 is characterized in that: The auxiliary sensors B, C, D... also include microwave radar sensors combined with radio frequency wireless communication to complete linkage control; the characteristic of radio frequency communication is broadcast mode, that is, sensors and central controller switch S devices within the coverage area can receive instructions through wireless communication.

Images