Fire alarm method and system with all battery powered wireless communication networking

Abstract

The application provides a fire alarm method and system of a wireless communication networking powered by a full battery, which comprises the following steps: in the cycle detection of the fire alarm of the wireless communication equipment, determining whether the to-be-detected alarm information is received in the current time sub-cycle; if yes, starting a long receiving window, so that it is in a normal information receiving state at least in part of the time in the current sub-time cycle, and in the rest of the time, it is in a low-power running state; verifying the validity of the to-be-detected alarm information, which indicates that the to-be-detected alarm information is fire alarm information; if yes, setting the long receiving window to a mode of being in the normal information receiving state at least in the current sub-time cycle, so as to detect whether the to-be-detected alarm information is continuously received for multiple times; if yes, entering an alarm state. The fire alarm method of the wireless communication networking powered by a full battery supports that the alarm system is powered by a full battery, has low power consumption, and has a wide application range.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the wireless communication technology field of the fire-fighting industry, in particular to a fire alarm method and system of a wireless communication networking of a full-battery power supply. BACKGROUND

[0002] The wireless gateway and the wireless repeater of the fire-fighting wireless early warning communication network are mostly powered by active power supply, and basically do not need to consider the low-power power supply design. However, in many application sites of the fire-fighting fire alarm system, there are difficulties in power supply, for example, cultural ancient buildings, forests, remote areas, and the like. Some power supply areas of these sites cannot cover all the protection areas, or the wiring is difficult, for example, it is not convenient to punch holes and lay wires in cultural ancient buildings, and the surface of the ancient buildings is damaged. The existing fire-fighting wireless early warning communication network cannot temporarily meet the needs of the fire alarm protection of the above-mentioned application sites.

[0003] In order to better protect the life and property safety of the part of the application scene, it is necessary to develop a fire alarm system of a wireless communication networking of a full-battery power supply. SUMMARY

[0004] The present application provides a fire alarm method and system of a wireless communication networking of a full-battery power supply, which is powered by a full battery, has low power consumption, and has a wide application range.

[0005] In order to solve the above-mentioned technical problems, the embodiment of the present application provides a fire alarm method of a wireless communication networking of a full-battery power supply, which comprises the following steps.

[0006] In the cycle detection process of the fire alarm of the wireless communication equipment, it is determined whether the to-be-detected alarm information is received in the current time sub-cycle.

[0007] If the to-be-detected alarm information is received, a long receiving window is started, and the long receiving window is at least in a normal information receiving state in part of the time in the current sub-time cycle period, and is in a low-power running state in the rest of the time.

[0008] The validity of the to-be-detected alarm information is verified, and the validity indicates that the to-be-detected alarm information is fire alarm information.

[0009] If the to-be-detected alarm information is valid, the long receiving window is set to a mode of being in a normal information receiving state at all times in the current sub-time cycle period, so as to detect whether the to-be-detected alarm information is continuously received for multiple times.

[0010] If yes, an alarm state is entered.

[0011] As an optional embodiment, the fire alarm method further comprises the following steps.

[0012] If the alarm information to be detected is not received in the current sub-loop, the long receiving window is either closed or in normal information receiving state for only part of the time in each sub-time loop, and in low power operation state for the rest of the time.

[0013] Based on the current long receive window state, proceed to the next sub-time cycle.

[0014] As an optional embodiment, verifying the validity of the alarm information to be detected includes:

[0015] The validity of the alarm information to be detected is determined by examining the preamble and / or information packet in the alarm information to be detected.

[0016] As an optional embodiment, it also includes:

[0017] If the alarm information to be detected is valid, the wireless communication devices shall maintain continuous keep-alive communication.

[0018] The keep-alive communication continuously receives the alarm information to be detected.

[0019] As an optional embodiment, it also includes:

[0020] If the alarm information to be detected is not received multiple times within several consecutive sub-time cycles, the alarm is considered to have ended.

[0021] As an optional embodiment, there are multiple wireless communication devices, which are located at different levels of the alarm system, and wireless communication devices of the same type are located at the same level; wherein, the wireless communication devices at each level only send the alarm information to be detected, without communication feedback packets, and each wireless communication device supports full battery power.

[0022] As an optional embodiment, the wireless communication device at the same level can only occupy one sub-time cycle to send the alarm information to be detected.

[0023] As an optional embodiment, the plurality of wireless communication devices include a wireless gateway, a repeater, and an alarm, wherein the wireless gateway directly sends the alarm information to be detected to other wireless communication devices, and the repeater determines a timestamp based on the received alarm information to be detected and achieves time synchronization based on the timestamp.

[0024] As an optional embodiment, the plurality of wireless communication devices include repeaters and alarms, and a mesh network can be formed based on the plurality of wireless communication devices.

[0025] Another embodiment of the present invention also provides a fire alarm system with a fully battery-powered wireless communication network, comprising:

[0026] determining module, configured to determine whether the to-be-detected alarm information is received in a current time sub-cycle during a cycle detection process of fire alarm of the wireless communication device;

[0027] opening module, configured to open a long receiving window to be in a normal information receiving state at least in part of time in the current time sub-cycle and in a low power consumption running state in the rest of time when the to-be-detected alarm information is received;

[0028] checking module, configured to check validity of the to-be-detected alarm information, the validity indicating that the to-be-detected alarm information is fire alarm information;

[0029] first setting module, configured to set the long receiving window to be in a mode of always being in the normal information receiving state in the current time sub-cycle to detect whether the to-be-detected alarm information is received continuously for multiple times when it is determined that the to-be-detected alarm information is valid;

[0030] alarm module, configured to enter an alarm state when it is determined that the to-be-detected alarm information is received continuously for multiple times.

[0031] As an optional embodiment, the application further comprises:

[0032] second setting module, configured to set the long receiving window to be in a closed state or in the normal information receiving state only in part of time in each time sub-cycle and in the low power consumption running state in the rest of time when the to-be-detected alarm information is not received in the current time sub-cycle;

[0033] detection module, configured to enter a next time sub-cycle with the current long receiving window state to continue the alarm detection.

[0034] It can be known from the disclosure of the above embodiment that the application has the beneficial effects including that the receiving power consumption of the wireless communication device in the alarm system is greatly reduced, so that each wireless communication device can support full battery power supply. Moreover, the time synchronization between the wireless communication devices, such as the repeater and the wireless gateway, does not need to be strictly implemented, which further reduces the power consumption and improves the communication efficiency. In addition, the method in the embodiment can support the wireless gateway in the multiple wireless communication devices in the alarm system, and further realize the mesh type networking in the hostless state.

[0035] Other features and advantages of the application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0036] The technical solutions of the present application will be further described in detail below with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0037] The accompanying drawings, which are included to provide a further understanding of the present application and constitute a part of this specification, illustrate embodiments of the present application and together with the general description of the application given above and the detailed description of the embodiments given below, serve to explain the present application. In the drawings:

[0038] Figure 1 Flow chart of the fire alarm method of the full battery powered wireless communication networking in the embodiment of the present application.

[0039] Figure 2 Flow chart of the fire alarm method of the full battery powered wireless communication networking in another embodiment of the present application.

[0040] Figure 3 Schematic diagram of the wireless broadcast simple flow in the embodiment of the present application.

[0041] Figure 4 Flow chart of the alarm communication in the wireless networking in the embodiment of the present application.

[0042] Figure 5 Flow chart of the communication inside the wireless communication equipment in the embodiment of the present application.

[0043] Figure 6 Flow chart of the alarm communication in the hostless mesh type assembly state in the embodiment of the present application.

[0044] Figure 7 Structural block diagram of the fire alarm system of the full battery powered wireless communication networking in the embodiment of the present application. DETAILED DESCRIPTION

[0045] The specific embodiments of the present application will be described in detail below with reference to the drawings, but not as a limitation of the present application.

[0046] It should be understood that various modifications can be made to the embodiments of the present application. Therefore, the following description should not be regarded as limiting, but only as an example of the embodiments. Those skilled in the art will think of other modifications within the scope and spirit of the present application.

[0047] The accompanying drawings, which are included in the specification and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0048] These and other characteristics of the present application will become apparent from the following description of the preferred forms given, by way of non-limiting example, with reference to the attached drawings.

[0049] It should also be understood that, although the present application has been described in relation to the foregoing specific embodiments, it is capable of a multitude of modifications, and equivalent constructions. Specific embodiments have been chosen for purposes of example and illustration and not for purposes of limitation. Those skilled in the art will readily appreciate that many additions, substitutions, modifications, and variations can be made to the specific embodiments without departing from the concepts of the present application as clarified by the claims.

[0050] The above and other aspects, features, and advantages of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, in which:

[0051] Specific embodiments of the present application will be described hereinafter with reference to the accompanying drawings. However, these are merely specific embodiments of the present application and can be carried out in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present application. Therefore, specific structural and functional details disclosed herein are not intended to be limiting, but are merely representative of the basis for the claims and representative of the basis for teaching one skilled in the art to use the present application in substantially any appropriate detailed structure.

[0052] The present specification can use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which can refer to one or more embodiments of the application.

[0053] Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

[0054] As shown in the drawings, the embodiments of the present application provide a full battery-powered wireless communication networking fire alarm method, comprising: Figure 1

[0055] S101: In the cycle detection process of fire alarm of the wireless communication device, it is determined whether the to-be-detected alarm information is received in the current time sub-cycle;

[0056] S102: If the to-be-detected alarm information is received, a long receiving window is started, which is at least in a normal information receiving state in part of the time in the current sub-time cycle period, and is in a low-power running state in the rest of the time;

[0057] S103: The validity of the to-be-detected alarm information is verified, and the validity indicates that the to-be-detected alarm information is fire alarm information;

[0058] S104: If valid, the long receiving window is set to a mode of being in a normal information receiving state at least in the current sub-time cycle period all the time to detect whether the to-be-detected alarm information is received continuously for multiple times;

[0059] S105: If yes, an alarm state is entered.

[0060] ​The cycle detection of fire alarm in the embodiment is developed based on the time cycle network of TDD, but does not depend on the time timer accuracy of the network. The wireless communication device includes multiple wireless communication devices, and the multiple wireless communication devices form a complete alarm system. The wireless communication device realizes alarm by sending alarm broadcast. The basic time cycle of the alarm system in the embodiment (i.e. the alarm period of one round of all wireless communication devices) can be divided into 2-n sub-time cycle periods of the same length. When there are two sub-time cycle periods, the multiple wireless communication devices can not include wireless repeaters, i.e. the formed wireless communication network is a repeater-free network. When there are three sub-time cycle periods, the wireless communication devices can include wireless gateways, wireless repeaters, etc., and the sub-time cycle periods can include wireless gateway broadcast time cycles, wireless repeater broadcast time cycles, and wireless terminal broadcast time cycles. When there are more than three sub-time cycle periods, the formed communication network can be a wireless networking system including multiple levels of repeaters. For example, a total period including two sub-cycles saves the sub-cycle of the wireless repeater, and can support a repeater-free on-site application scenario. For another example, a total period including four sub-cycles can support an application scenario including an added two-level wireless repeater. Specifically, taking a total period including three sub-time cycle periods as an example, the first time sub-cycle is a host broadcast cycle, the second time cycle is a wireless repeater relay broadcast cycle, and the third time is a terminal alarm broadcast cycle. In addition, the total time of the wireless networking period can be modified, and typical values include different time combinations such as 2.3*3s; 3*3s; 5*3s; 7*3s; 10*3s; 12*3s, etc.

[0061] Further, in the cycle detection process of fire alarm of the wireless communication device, if the alarm information to be detected is received in the current time sub-cycle, a long receiving window is opened. The long receiving window can be one window, or can be formed by two or more sub-windows, and the specific form is not unique. After the long receiving window is opened, the window is in a normal information receiving state at least in part of the time in the current sub-time cycle period, and is in a low-power running state in the remaining time, i.e. the window is started only in part of the time period of each sub-cycle period, and can be in a sleep state in the remaining time. In the embodiment, the opening of the long receiving window can be understood as waking up the window to make it enter the normal information receiving state in advance, or the long receiving window has at least two sub-windows, both of which are in a sleep state. When it is determined that the alarm information to be detected is received, one of the sub-windows is started. Then the wireless communication device verifies the validity of the alarm information to be detected, determines whether it is fire alarm information, and if so, controls the long receiving window to be in a normal information receiving state in a sub-cycle period, i.e. in a normal power consumption state, to accurately receive the alarm information to be detected, so that the whole alarm system enters an alarm state.

[0062] Based on the above embodiment, it can be known that the embodiment has the beneficial effects including that the receiving power consumption of the wireless communication device in the alarm system is greatly reduced, so that each wireless communication device can support full battery power supply. Moreover, the time synchronization between the wireless communication devices, such as the repeater and the wireless gateway, does not need to be strictly implemented, which further reduces the power consumption and improves the communication efficiency. In addition, based on the method in the embodiment, the wireless gateway can be supported in the plurality of wireless communication devices in the alarm system, and the mesh networking in the hostless state is realized.

[0063] Further, as shown in Figure 2 The embodiment further includes:

[0064] S106: If the to-be-detected alarm information is not received within the current sub-cycle, the long receiving window is in a closed state or is in a normal information receiving state only for part of the time in each sub-time cycle period and is in a low-power running state for the rest of the time;

[0065] S107: Based on the current long receiving window state, entering the next sub-time cycle period.

[0066] That is, as described above, the long receiving window can be in a closed state or a sleep state when not in an alarm state, or in a sleep state or the like low-power running state for most of the time in each sub-time cycle period and in a normal information receiving state for only a small part of the time, that is, the power consumption is increased in this part of the time, which is the normal running power consumption. Each wireless communication device performs a plurality of sub-time cycle periods based on this, thereby achieving the effect of greatly reducing the receiving power consumption and supporting full battery power supply.

[0067] Further, the validity of the to-be-detected alarm information is verified, including:

[0068] S108: The preamble and / or information packet in the to-be-detected alarm information are verified to determine the validity of the to-be-detected alarm information.

[0069] For example, the data packet / wakeup packet of the to-be-detected alarm information in the embodiment is composed of a preamble / wakeup code and an information packet. The time length of each data packet is equal to the time of the sub-time cycle period, that is, the data packet / wakeup packet can be sent only once in a sub-time cycle period. For example, in a 2.3s sub-time cycle period, the communication packet is composed of a 2.28s preamble and a 0.02s information packet at the highest rate of communication. When verifying the validity of the to-be-detected alarm information, the feature information in the preamble and / or the feature information in the information packet can be used to determine whether the to-be-detected alarm information is real fire alarm information, thereby verifying the validity.

[0070] Specifically, the receiving wake-up time window of the wireless communication device, such as the wireless gateway or the repeater or the alarm terminal in the embodiment, is composed of 1 to 2 receiving windows, which are opened once in each sub-time cycle and last for a short time for receiving the alarm information. To wake up the receiving window, it is necessary to determine the validity of the alarm information to be verified, and the verification principle includes detecting the characteristics of the preamble signal (the detection method is a non-CAD detection method), and the wireless communication device only responds to the signal meeting the corresponding wake-up characteristics. Once the wake-up packet is received, it is considered that the information is received, at which time the wireless communication is woken up, and the long receiving window is started. The long receiving window further verifies the characteristics of the wake-up signal, i.e., the validity, and if it is determined to be a fire alarm signal, the long receiving mode is started, i.e., the receiving mode is operated with normal power consumption and lasts for an entire sub-time cycle. In application, the long receiving window can be composed of 2 small receiving time windows with an interval of 1 s, which can improve the time of occasional interference signals or information packets and increase the probability of successfully capturing the wake-up packet / wake-up code.

[0071] Optionally, the wireless networking in the embodiment supports a method of switching different communication rates, and the wake-up window receiving time is different for different communication rates. For example, at the highest rate, the total receiving time of the wake-up window is 20 ms.

[0072] Further, the method in the embodiment further includes:

[0073] S109: In the case that the alarm information to be detected is valid, the wireless communication devices perform continuous keep-alive communication.

[0074] S110: Based on the keep-alive communication, the alarm information to be detected is continuously received.

[0075] S111: If the alarm information to be detected is not received multiple times in a plurality of consecutive sub-time cycles, it is determined that the alarm is over.

[0076] That is, the alarm system in the embodiment needs to do sustained keep-alive communication between the host and the terminal when alarming, that is, to continuously send the to-be-detected alarm information. If the receiver in the wireless communication device does not receive the to-be-detected alarm information again for a plurality of sub-time cycle periods, it is considered that the alarm has ended. Specifically, the wireless networking in the embodiment supports the method of starting the wireless heartbeat, which is different from the common keep-alive heartbeat. The keep-alive heartbeat in the embodiment is initiated by the wireless host / wireless gateway in the form of broadcast. After the broadcast, the wireless host / wireless gateway starts three long receiving cycles, and the terminal reports the keep-alive heartbeat information according to the subnet code in turn, for three cycles. Of course, the number of long receiving cycles can be more than three, and can also be two or more. That is, the wireless gateway can actively issue a broadcast communication signal to other field components of the whole alarm system. After receiving the broadcast of the wireless gateway, the other field components report the wireless heartbeat communication information in turn according to the communication address subcode allocated during registration. For details, reference can be made to Figure 3 Based on the keep-alive method, the power consumption can be better saved, and the wireless communication cost can be reduced.

[0077] Further, the wireless communication device in the embodiment includes a plurality of wireless communication devices, which form an alarm system. The plurality of wireless communication devices are located at different levels of the alarm system, and wireless communication devices of the same type are located at the same level. For example, the plurality of wireless communication devices include but are not limited to wireless gateways, repeaters, and various types of alarms, etc. The alarm switches and alarm detectors are located at the same level, the wireless gateways and wireless repeaters are located at the same level, and the wireless manual alarm switches, wireless sound and light alarms, sound alarms, light alarms, and input / output modules are located at the same level. Among them, the wireless communication devices at each level only send to-be-detected alarm information without communication feedback packets, which can significantly improve the communication control efficiency of the communication broadcast. Moreover, each wireless communication device supports full battery power supply, which solves the fire alarm safety demand in different environments. In addition, the wireless gateway in the embodiment can be expanded into a multi-path wireless communication network. By increasing the communication link, the anti-interference ability is enhanced, the uplink and downlink of the wireless communication are divided into two communication frequency points, or a standby communication frequency point is added.

[0078] Furthermore, in this embodiment, to prevent network storms from affecting the reception of alarm signals, wireless communication devices at the same level can only occupy one sub-time cycle to send the alarm information to be detected. That is, within one basic time cycle, wireless devices at the same level can only occupy one sub-time cycle for broadcasting. Moreover, the wireless networking in this embodiment does not require strict time synchronization, allowing for a large time error between the terminal and the wireless gateway / wireless host. This significantly improves the clock cost and communication robustness of the alarm system, and also greatly improves the information retransmission of the alarm system. It eliminates the need to calculate complex retransmission times or mechanisms, improves the accuracy requirements for terminal wake-up time, and solves the clock deviation error problem caused by ambient temperature, clock source error, or years of accumulated work habits.

[0079] Specifically, in this embodiment, the wireless gateway can directly send alarm information to be detected to other wireless communication devices. The repeater determines a timestamp based on the received alarm information and achieves time synchronization based on this timestamp. For example, as mentioned above, this embodiment has high redundancy compatibility for time accuracy. The broadcasts of wireless communication devices at each layer do not require prior time synchronization. Therefore, the wireless gateway in this embodiment can directly send broadcasts. After receiving the broadcasts, the repeater can obtain a new timestamp in the sub-cycle time period of the gateway broadcast and automatically achieve time synchronization based on this timestamp. This achieves time synchronization for the repeater, enabling it to send relay broadcasts in the corresponding sub-cycle time period. Based on the above scheme of this embodiment, the wireless network can save the time of the repeater synchronizing the terminal before the gateway broadcast while having excellent redundant communication capabilities, thus improving communication efficiency.

[0080] Optionally, in another embodiment, the multiple wireless communication devices include repeaters and alarms, but do not include wireless gateways. Based on the multiple wireless communication devices, a mesh network can be formed. Each alarm terminal can send a start action packet within its sub-time cycle, and the execution device can automatically start after receiving the information.

[0081] To better illustrate the methods described above in this application, the following detailed description is provided in conjunction with specific embodiments and application diagrams:

[0082] Implementing benefit one, such as Figure 4 As shown, the multiple wireless communication devices in this embodiment include a wireless manual alarm switch, a wireless gateway, a wireless repeater, and various alarms. The "wireless manual alarm switch" is not limited to this type of device; it can also be any product that can report alarm signals, such as a "wireless stand-alone smoke detector," a "wireless stand-alone heat detector," a "wireless input module," and so on.

[0083] In this embodiment, first alarm signal needs to be sent from one or more alarm switches, through Figure 1 the route numbered "1" in the figure, to wireless gateway, wireless repeater, wireless sound and light alarm, wireless sound or light alarm, wireless input and output module and other devices. However, at this time, several devices may not receive the alarm signal. When the device that does not receive the signal is a wireless gateway, a wireless repeater is needed to relay and forward the signal. When the device that does not receive the signal is other terminal (terminal device can be wireless sound and light alarm, wireless sound or light alarm, wireless input and output module, wireless independent smoke detector, wireless independent temperature detector and other devices), the wireless gateway and repeater will continue to forward the alarm signal.

[0084] After the terminal sub-alarm first round signal in the first round of large cycle is sent out, the alarm will be sent until the on-site maintenance personnel arrive to eliminate the alarm information (the feature of manual alarm, which needs to be manually canceled after being pressed). Of course, the alarm signal can also be self-recoverable, for example, when the wireless independent smoke detector sends out the alarm signal, after the fire occurs, it can identify the fire smoke and report the signal to the network, and after the fire is extinguished, it can automatically stop the alarm. Further, after the wireless gateway receives the alarm information of the wireless manual alarm, it will relay and send the alarm information in the first sub-cycle period, which corresponds to the route numbered "2" in the figure. After the wireless repeater receives the alarm information of the wireless manual alarm, it will relay and send the alarm information in the second sub-cycle period, which corresponds to the route numbered "3" in the figure. Then, the system will be in a cycle alarm state, each large cycle includes multiple sub-cycles, so if the small cycle in the first large cycle is abnormal, it does not need to be handled separately, because repeated communication will be performed in the next cycle, so it can effectively resist communication failure and other abnormal situations.

[0085] The awakened wireless communication device will continuously listen to the alarm signal and send out an alarm until it determines that the communication period of the alarm signal has ended after multiple rounds of continuous failure to receive the alarm signal, and therefore stops sending out the alarm.

[0086] In embodiment two, as shown in Figure 5 , this embodiment is an alarm communication process in the assembly state of hostless mesh type. Specifically, after the wireless manual alarm switch starts the alarm, it initiates a period of sub-cycle communication package, which can wake up and control wireless gateway, wireless repeater, wireless sound and light alarm, wireless sound or light alarm, wireless input and output module and other devices at the same time. The alarm will be sent until the on-site maintenance personnel arrive to eliminate the alarm information. Among them, after the wireless repeater receives the alarm information of the wireless manual alarm, it will relay and send the alarm information in the first sub-cycle period.

[0087] In embodiment three, as shown inFigure 6 The flow in the embodiment refers to the execution logic of all devices in a certain alarm condition. Please note that this example is only the execution logic in one scenario and cannot be generalized to all scenarios. Moreover, the flow in the embodiment refers to the flow inside a single wireless communication device, which is different from the first embodiment in that the first embodiment is the communication process between different devices in the system, while the embodiment is the communication process inside each device.

[0088] The cyclic detection refers to the fact that the flow can be run in a closed loop. The first time sub-cycle refers to a sub-time cycle period of the first embodiment, 0.1s is 100ms, and x is the sub-cycle time, for example, a sub-cycle of 2.3s, the first 2.2s is the low-power sleep time, so that the system can run in low power, and the last 100ms is to start the long receiving window, i.e., the non-low-power time, for receiving wireless communication information.

[0089] For opening the long receiving window, a double-window opening method can be used, or a single-window opening method can be used. The double-window opening is a method for improving the detection efficiency, because the wake-up code time is longer than the window opening time, and the success rate of two detections is higher. The single-window opening is to realize detection by opening the window once. The "yes" in the figure represents that the device has successfully detected the valid wireless communication signal, and then opens the long receiving window, so that all sub-cycles within x time are not in the low-power state, and all perform the receiving detection of the alarm signal, to improve the success rate, i.e., in the alarm state, the low-power is not the first priority, and the communication detection success rate is improved.

[0090] The judgment of opening the long receiving window right side in the figure is "detecting whether the control information is valid" to prevent misjudging a wake-up signal. If the detection of the signal is not correct, the terminal immediately re-enters the low-power business mode of hibernation wake-up. If the result of "detecting whether the control information is valid" is "yes", it indicates that a correct alarm signal is detected, and the terminal needs to enter the alarm state. The following judgment logic is that the alarm needs to be detected for n times of receiving, and only when the alarm is ended, the terminal can re-enter the low-power business mode of hibernation wake-up. The working principles of the second and third sub-cycles in the figure are the same as those described above. That is, after the wireless total cycle period starts, the terminal first enters the first sub-time cycle, receives an opportunity to perform double-window or single-window opening window receiving, enters the second sub-time cycle to receive an opportunity to perform double-window or single-window opening window receiving after not receiving a wake-up packet, enters the third sub-time cycle to receive an opportunity to perform double-window or single-window opening window receiving after not receiving a wake-up packet, and repeats the above process. When the terminal receives a wake-up packet in a certain sub-time cycle, the terminal identifies the validity of the received information. If the data is invalid, the terminal returns to the cycle. If the data is valid, the terminal enters the alarm judgment logic, accurately receives the data by opening a complete sub-time cycle, and returns to the wireless total cycle period after not receiving the alive alarm state data packet for n times.

[0091] The method based on the embodiment can make each device in the system in the wireless network environment always in the wireless total cycle period without receiving an alarm wake-up packet in a non-fire situation, so that the power consumption of the system is well controlled, thereby meeting the design requirements of battery power supply. When there is an alarm signal, the system can also run at full power to effectively realize the alarm.

[0092] As shown in Figure 7 Another embodiment of the present application simultaneously provides a full-battery-powered wireless communication networking fire alarm system 100, which includes:

[0093] A determination module is configured to determine whether the to-be-detected alarm information is received in a current time sub-cycle in a cycle detection process of the wireless communication device for fire alarm;

[0094] An opening module is configured to open a long receiving window when the to-be-detected alarm information is received, so that the long receiving window is in a normal information receiving state at least in part of the time in the current time sub-cycle period, and is in a low-power running state in the rest of the time.

[0095] A verification module is configured to verify the validity of the to-be-detected alarm information, and the validity indicates that the to-be-detected alarm information is fire alarm information.

[0096] a first setting module, configured to set the long receiving window to a mode of being in a normal information receiving state all the time in the current sub-time cycle period when it is determined that the to-be-detected alarm information is valid, so as to detect whether the to-be-detected alarm information is received continuously for multiple times;

[0097] an alarm module, configured to enter an alarm state when it is determined that the to-be-detected alarm information is received continuously for multiple times.

[0098] As an optional embodiment, the system further comprises:

[0099] a second setting module, configured to set the long receiving window to a closed state or a normal information receiving state only in part of each sub-time cycle period and a low-power running state in the rest of each sub-time cycle period when the to-be-detected alarm information is not received in the current sub-cycle period;

[0100] a detection module, configured to continue alarm detection in the next sub-time cycle period with the current long receiving window state.

[0101] As an optional embodiment, the system further comprises:

[0102] the to-be-detected alarm information is verified by verifying a preamble and / or a packet in the to-be-detected alarm information.

[0103] As an optional embodiment, the system further comprises:

[0104] a keep-alive communication module, configured to perform continuous keep-alive communication between the wireless communication devices when the to-be-detected alarm information is valid; and continuously receive the to-be-detected alarm information based on the keep-alive communication.

[0105] As an optional embodiment, the system further comprises:

[0106] a receiving module, configured to determine that the alarm ends when the to-be-detected alarm information is not received for multiple times in continuous sub-time cycles.

[0107] As an optional embodiment, the wireless communication devices are multiple and are located at different levels of an alarm system, and wireless communication devices of the same type are located at the same level; wherein, the wireless communication devices at each level only send the to-be-detected alarm information without communication feedback packets, and each wireless communication device supports full battery power supply.

[0108] As an optional embodiment, the wireless communication devices at the same level can only occupy one sub-time cycle period to send the to-be-detected alarm information.

[0109] As an optional embodiment, the plurality of wireless communication devices comprises a wireless gateway, a repeater, and an alarm, wherein the wireless gateway directly sends the to-be-detected alarm information to other wireless communication devices, and the repeater determines a time mark based on the received to-be-detected alarm information and implements time synchronization based on the time mark.

[0110] As an optional embodiment, the plurality of wireless communication devices comprises a repeater and an alarm, and the plurality of wireless communication devices can form a mesh network.

[0111] Another embodiment of the present application further provides an electronic device, comprising:

[0112] one or more processors;

[0113] a memory configured to store one or more programs;

[0114] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-mentioned fire alarm method of the all-battery-powered wireless communication networking.

[0115] Further, an embodiment of the present application further provides a storage medium having a computer program stored thereon, and the program is executed by a processor to implement the above-mentioned fire alarm method of the all-battery-powered wireless communication networking. It should be understood that each scheme in the embodiment has the corresponding technical effects of the above-mentioned method embodiments, which will not be described here.

[0116] Further, an embodiment of the present application further provides a computer program product, which is tangibly stored on a computer-readable medium and includes computer-readable instructions that, when executed, cause at least one processor to perform the fire alarm method of the all-battery-powered wireless communication networking such as the above-mentioned embodiments.

[0117] It should be noted that the computer-storage medium of the present application can be a computer-readable signal medium or a computer-readable storage medium or any combination thereof. The computer-readable medium may, for example, but without limitation, be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or a system and / or a device, or any suitable combination of the foregoing. More specific examples of the computer-readable storage medium can include, but are not limited to, an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in connection with an instruction execution system, a system, or a device. In the present application, the computer-readable signal medium can include a data signal that propagates in a baseband or as part of a carrier wave by any means of transmission, including, but not limited to, wired or wireless transmission. Such a propagated signal can take any suitable form, including, but not limited to, an electromagnetic signal, an optical signal, or any suitable combination of the foregoing. The computer-readable signal medium can also be any computer-readable medium that is not a computer-readable storage medium and that can communicate, transmit, or propagate programs associated with the instruction execution system, the system, or the device. The program code contained in the computer-readable medium can be transmitted by any suitable medium, including, but not limited to, wireless, optical, cable, RF, or the like, or any suitable combination of the foregoing.

[0118] In addition, those skilled in the art will appreciate that embodiments of the present application can be provided as a method, a system, or a computer program product. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product on one or more computer-readable storage media (including, but not limited to, disk memory and optical memory) having computer usable program code embodied in the medium.

[0119] The present application is described with reference to the flowcharts and / or block diagrams of the methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions, which are executed via the processor of the computer or other programmable data processing apparatus, generate a means for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1one or more processes and / or blocks Figure 1 a system of one or more computers in order to direct the system to

[0120] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to Figure 1 one or more processes and / or blocks Figure 1 a system of one or more computers in order to direct the system to

[0121] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the Figure 1 one or more processes and / or blocks Figure 1 a system of one or more computers in order to direct the system to

[0122] Obviously, persons skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0123] The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered to fall within the protection scope of the present application.

Claims

1. A fire alarm method of a wireless communication networking which is entirely powered by a battery, characterized in that, The method comprises the steps of: Step S101: determining whether the to-be-detected alarm information is received in the current time sub-cycle in the cycle detection process of the wireless communication device for fire alarm; In the cycle detection process of the fire alarm, the total cycle comprises three time sub-cycle periods, the first time sub-cycle is a host broadcast cycle, the second time cycle is a relay broadcast cycle of a wireless repeater, and the third time cycle is a terminal alarm broadcast cycle; Step S102: if the to-be-detected alarm information is received, a long receiving window is opened, and the long receiving window is in a normal information receiving state at least in part of the time in the current time sub-cycle period, and is in a low-power running state in the remaining time; The long receiving window is formed by two or more sub-windows, and each sub-window is in a dormant state. When it is determined that the to-be-detected alarm information is received, one of the sub-windows is started; Step S103: verifying the validity of the to-be-detected alarm information, wherein the validity indicates that the to-be-detected alarm information is fire alarm information; The step of verifying the validity of the to-be-detected alarm information comprises the steps of: Step S108: verifying the preamble and / or information packet in the to-be-detected alarm information to determine the validity of the to-be-detected alarm information; Step S104: if the to-be-detected alarm information is valid, setting the long receiving window to a mode in which the long receiving window is always in a normal information receiving state at least in the current time sub-cycle period, so as to detect whether the to-be-detected alarm information is continuously received for multiple times; Step S105: if yes, entering an alarm state; The method further comprises the steps of: Step S106: if the to-be-detected alarm information is not received in the current time sub-cycle, the long receiving window is in a closed state or is in a normal information receiving state only in part of each time sub-cycle period, and is in a low-power running state in the remaining time; Step S107: entering a next time sub-cycle period based on the current state of the long receiving window; The plurality of wireless communication devices comprise a wireless gateway, a repeater, and an alarm, wherein the broadcast of each layer of wireless communication device does not need to be time-synchronized in advance, the wireless gateway directly sends the to-be-detected alarm information to other wireless communication devices, and the repeater determines a time mark based on the received to-be-detected alarm information and realizes time synchronization based on the time mark; The wireless communication devices are multiple and are located at different levels of an alarm system, and the wireless communication devices of the same type are located at the same level; wherein the wireless communication devices at each level only send the to-be-detected alarm information without a communication feedback packet, and each wireless communication device supports full battery power supply; the wireless communication devices at the same level can only occupy one time sub-cycle period to send the to-be-detected alarm information; The plurality of wireless communication devices can form a mesh type network; The full-battery-powered wireless communication networking fire alarm method further comprises the steps of: Step S109: in the case that the to-be-detected alarm information is valid, the wireless communication devices perform continuous keep-alive communication; Step S110: continuously receiving the to-be-detected alarm information based on the keep-alive communication.

2. The all-battery powered wireless communication networked fire alarm method according to claim 1, wherein, Further comprising: Step S111: If the alarm information to be detected is not received for multiple times in continuous multiple sub-time cycles, it is determined that the alarm is over.

Images