CN111918381A

CN111918381A - Wireless synchronous modulation method and device

Info

Publication number: CN111918381A
Application number: CN202010809004.XA
Authority: CN
Inventors: 徐力
Original assignee: Shenzhen Alm Technology Co ltd
Current assignee: Shenzhen Alm Technology Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2020-11-10
Anticipated expiration: 2040-08-12
Also published as: CN111918381B

Abstract

The invention discloses a wireless synchronous modulation method and a device, comprising the following steps: a certain wireless master end device sends a synchronous sequence beacon containing a synchronous modulation identifier to a plurality of wireless slave end devices in a synchronous matching state; keeping the wireless time slot synchronization in each synchronization time period; when the wireless slave end equipment receives the synchronous modulation mark in the synchronous detection receiving time slot, the synchronous time slot modulation corresponding to the wireless slave end equipment is executed, and the corresponding modulation verification mark is placed into the equipment state beacon; and when the wireless slave end equipment judges that the equipment itself or the service object thereof is in a potential trigger state, the wireless slave end equipment carries out state feedback modulation on the synchronous detection receiving time slot. The invention solves the problem of the sending efficiency of the synchronous concurrent data of dynamic modulation, saves network service resources, improves the resource efficiency of concurrent data transmission, reduces the standby power consumption of the wireless equipment in a non-potential trigger state, and solves the problem of dynamic balance of the sending and receiving power consumption of the synchronous data.

Description

Wireless synchronous modulation method and device

Technical Field

The invention belongs to the technical field of wireless communication of a wireless Internet of things edge domain network, and particularly relates to a wireless communication mode, a service mechanism and a flow between a network service node and low-power-consumption target object equipment (and a group thereof), in particular to a wireless synchronous modulation method and a wireless synchronous modulation device.

Background

For different intelligent application scenes, an internet of things edge domain with dynamic information interaction characteristics, which is formed by an internet of things edge service node and a plurality of target object devices (namely network client devices) around the internet of things edge service node, is mainly oriented to solving the problems of wireless network communication and information interaction service mechanisms and processes of the target object domain and a perception control domain.

According to the topology and protocol architecture of wireless communication nodes, the network topology transmission mode of wireless multipoint communication between a network service node and a target object device (namely a network client device) can be classified into several basic types of wireless directional broadcasting, wireless multipoint connection and wireless Mesh network according to the current short-distance and low-power consumption internet of things wireless technology.

Target object devices oriented to the internet of things edge domain network and the service nodes thereof not only include strong intelligent terminal devices which support standard wireless network access and have strong resource capability and can be provided with various application software like computers and smart phones, but also include mobile or distributed target object devices (such as wearable devices, distributed sensors, peripheral execution devices and the like) which have lower cost, ultra-low power consumption and relatively weak resource capability.

The wireless network communication mode between the network service node and the target object device among the devices in the edge domain of the Internet of things is more important in the stability and interoperability of the edge network under many conditions, and large-data-volume broadband communication is not needed; when a network service node needs to perform concurrent service on a target object device as a client in a "one-to-many" or "many-to-many" manner, in addition to the interoperability problem of a dynamic access network, it is also necessary to pursue a balance between hardware resources, power consumption, and transient response efficiency, that is, one or more service node devices may simultaneously provide services of synchronous transient triggering and concurrent data transmission for several target object devices or device groups in a low-power standby state.

A plurality of cooperative agent nodes with the same or mutually related equipment network attributes in the edge domain of the Internet of things and a plurality of peripheral proxied nodes form a cooperative agent network system through a cooperative distribution network. The cooperative agent node is managed by an upper cooperative agent node or a network system host (called a system host for short); the service node equipment can perform wireless scanning detection on wireless beacons sent by the target object equipment in different channels or time slots, and can monitor and collect state variable feedback of a plurality of peripheral target object equipment in one moment (extremely short time); typically, a wireless device is able to acquire wireless beacons in a wireless scanning probe fashion up to tens to hundreds of times per second. However, since the wireless scanning and detecting needs to occupy more power consumption and resources, the target device in the low-power standby state before the wireless connection is established cannot obtain the fast trigger response and the concurrent control from the serving node device in the same manner.

In the prior art, although the wireless directional broadcast has a simple topological structure, less wireless resource occupation, high synchronous data transmission efficiency, high trigger response speed, simple wireless protocol and good interoperability, the wireless directional broadcast has obvious defects: the data transmission direction is asymmetric, the asynchronous data transmission efficiency is low, the data receiving feedback monitoring efficiency is low, and the power consumption of a wireless receiving end is high.

Although the wireless multi-point connection is capable of multi-point bidirectional wireless data transmission, stable wireless data transmission, convenient asynchronous connection communication and relatively high security, it has certain disadvantages: if the response time for establishing the connection is long, and depends on environmental and resource factors, the wireless channel resource occupation is large, especially when the number of the client devices is large, the wireless multipoint connection tends to be poor in stability, the wireless transmission distance is shortened, and the wireless transmission power consumption is increased.

Although the wireless Mesh network has simple installation and configuration, easy and rapid networking, flexible wireless transmission path, strong redundancy mechanism and communication load balance and lower wireless transmission power, the wireless Mesh network also has obvious defects: for example, the wireless interoperability compatibility is poor, the wireless communication delay is high, the cross coverage cooperativity of different wireless standards is poor, and especially, the problem of the balance between the standby power consumption and the trigger response time needs to be solved when low-power-consumption client equipment is not suitable for being used as a relay node.

In summary, how to solve the sending efficiency of the dynamically modulated synchronous concurrent data, how to save network service resources, how to greatly improve the resource efficiency of concurrent data transmission, how to solve the dynamic balance between the sending and receiving power consumption of the synchronous data, and how to solve the balance between the wireless receiving trigger response and the standby power consumption become technical problems which need to be solved urgently.

Disclosure of Invention

The present invention is directed to a wireless synchronization modulation method and apparatus, so as to solve the above-mentioned problems in the background art.

Therefore, according to a first aspect, an embodiment of the present invention discloses a wireless synchronization modulation method, including:

a certain wireless master end device sends a synchronous sequence beacon containing a synchronous modulation identifier to a plurality of wireless slave end devices in a synchronous matching state;

under the synchronous matching state of the wireless slave end equipment and the wireless master end equipment, keeping wireless time slot synchronization in each synchronization time period;

when the wireless slave end equipment receives the synchronous modulation identification sent by the wireless master end equipment in the synchronous detection receiving time slot, the corresponding synchronous time slot modulation is executed according to the synchronous modulation identification, and the corresponding modulation verification identification is placed in the equipment state beacon;

and when the wireless slave end equipment judges that the equipment itself or the service object thereof is in a potential trigger state, the wireless slave end equipment carries out state feedback modulation on the synchronous detection receiving time slot according to the associated state monitoring variable and puts the modulation verification identifier into an equipment state beacon.

The invention is further configured to: when the wireless slave end equipment receives the synchronous data packet contained in the synchronous sequence beacon, the wireless slave end equipment starts to receive the synchronous data packet sent by the wireless master end equipment in the synchronous detection receiving time slot, receives the synchronous data packet in a synchronous time slot modulation mode in the synchronous validity period, and places the current state verification code received corresponding to the synchronous data packet into the equipment state beacon.

The invention is further configured to: the synchronous timeslot modulation is performed by adjusting associated modulation characteristic parameters, which include one or more sets of parameters of synchronous detection timeslot width, synchronous detection timeslot period, synchronous detection timeslot phase, and synchronous detection timeslot duty cycle.

The invention is further configured to: on the premise that the wireless slave end equipment and the wireless master end equipment keep a synchronous matching state and the synchronous time parameter is not changed, the wireless slave end equipment automatically performs synchronous time slot modulation on the equipment according to the current modulation requirement and in a self-adaptive multiplying power modulation mode, wherein the self-adaptive time slot modulation comprises the following steps: the synchronous detection time slot width modulation and the synchronous detection time slot period modulation.

The invention is further configured to: the synchronous modulation mark is mark information used by the wireless master end equipment to indicate the wireless slave end equipment which keeps a synchronous matching state with the wireless master end equipment to carry out wireless synchronous receiving modulation; the wireless synchronous reception modulation comprises: and the wireless slave end equipment dynamically adjusts the sending/receiving state and the relevant mode parameters of the equipment based on the current modulation characteristic parameters according to the synchronization indication of the wireless master end equipment which keeps a synchronization matching state with the wireless slave end equipment and the synchronization indication of the wireless master end equipment according to a given time sequence.

The invention is further configured to: the state feedback modulation is to modulate the synchronous time slot according to the feedback of the state monitoring variable; the state feedback modulation is a dynamic balance mechanism between the expected trigger response characteristic of the wireless slave end equipment for wireless data reception and the synchronous time slot power consumption according to the feedback of the state monitoring variable.

The invention is further configured to: the state monitoring variable is a monitoring physical quantity which reflects the current state characteristics of the equipment or the associated service object in the target object equipment; when the state monitoring variable reaches or exceeds a set early warning value, correspondingly reducing the duty ratio of the synchronous detection time slot in the wireless mode parameter; and conversely, when the state monitoring variable exceeds a set expected value, correspondingly increasing the duty ratio of the synchronous detection time slot.

The invention is further configured to: the synchronous time slot modulation is wireless synchronous receiving modulation of the wireless slave end equipment on the synchronous detection receiving time slot related mode parameters, and the wireless slave end equipment carries out wireless receiving modulation on the equipment according to the synchronous indication of the wireless master end equipment which keeps a synchronous matching state with the wireless slave end equipment.

The invention is further configured to: the synchronization sequence beacon comprises a packet synchronization sequence beacon for serving different or multiple groups of target devices; the packet synchronization sequence beacons are identified by being received by wireless slave devices of different target device groups according to any one or combination of the following ways:

1) different device group IDs;

2) different synchronization time periods or their magnifications;

3) different synchronization beacon slot phases or widths.

According to a second aspect, an embodiment of the present invention discloses a wireless synchronous modulation apparatus, which, as a wireless slave device, includes the following modules:

the modulation receiving module is used for receiving a synchronization sequence beacon which is sent by the wireless master end equipment and contains a synchronization modulation identifier;

the synchronization maintaining module is used for maintaining the synchronization of the wireless time slots in each synchronization time period in the synchronization matching state of the synchronization maintaining module and the wireless main end equipment;

the modulation execution module is used for executing the corresponding synchronous time slot modulation according to the synchronous modulation mark when the synchronous detection receiving time slot receives the synchronous modulation mark sent by the wireless main end equipment, and putting the corresponding modulation verification mark into the equipment state beacon;

a feedback modulation module: and the wireless slave end equipment is used for carrying out state feedback modulation on the synchronous detection receiving time slot according to the associated state monitoring variable and placing the modulation verification mark into the equipment state beacon when the equipment or the service object thereof is in the potential trigger state.

In summary, compared with the prior art, the invention discloses a wireless synchronous modulation method and a wireless synchronous modulation device, wherein a wireless master end device sends a synchronous sequence beacon containing a synchronous modulation identifier to a plurality of wireless slave end devices in a synchronous matching state, so that the problem of sending efficiency of dynamically modulated synchronous concurrent data is solved, network service resources are saved, and the resource efficiency of concurrent data transmission is greatly improved; the wireless slave end equipment keeps the synchronization of the wireless time slots in each synchronization time period in a synchronization matching state, and at least performs one time of synchronization time correction in a synchronization validity period, so that the problems of the accuracy of synchronization time and the stability of synchronization matching in the synchronization matching state are solved, and the trigger receiving response speed and the success rate in a low power consumption state are improved by improving the detection time slot effect; when the wireless slave end equipment receives the synchronous modulation identification in the synchronous detection receiving time slot, the synchronous time slot modulation corresponding to the wireless slave end equipment is executed, and the corresponding modulation verification identification is placed into the equipment state beacon, so that the wireless master end equipment can carry out balance planning and adjustment on the expected performance requirement of wireless data receiving and the synchronous time slot power consumption, and the dynamic balance problem of synchronous data sending and receiving power consumption is solved; when the wireless slave end equipment is in a potential trigger state, the state feedback modulation is carried out on the synchronous detection receiving time slot according to the associated state monitoring variable, so that the standby power consumption of the wireless equipment in a non-potential trigger state in most time is greatly reduced, and the balance problem of wireless receiving trigger response and the standby power consumption is solved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a flowchart of a wireless synchronization modulation method provided in this embodiment;

fig. 2 is a block diagram of an internal structure of a wireless synchronous modulation device provided in this embodiment;

fig. 3 is a main flow chart of embedded software of the wireless synchronous modulation device provided in the present embodiment as a wireless slave device;

fig. 4 is a flowchart of a detection response processing software of a modulation receiving module in the wireless synchronization apparatus according to the present embodiment;

fig. 5 is a schematic diagram of a wireless network topology path and a role relationship for a low-power-consumption target object device service provided in this embodiment.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

Furthermore, the technical features mentioned in the different embodiments of the present invention described above may be combined with each other as long as they do not conflict with each other.

Please refer to fig. 1, which is a flowchart illustrating a wireless synchronization modulation method according to an embodiment of the present invention, and the following is detailed:

step S101, a wireless master end device sends a synchronization sequence beacon containing a synchronization modulation identifier to a plurality of wireless slave end devices in a synchronization matching state.

In a specific implementation process, the wireless master device or the wireless slave device is a relative role between the devices: when wireless data communication is performed between two wireless devices, one of the two wireless devices that is dominant in a wireless data communication method and process is a wireless master device, and the other is a wireless slave device, typically, in a network system, the wireless master device is a serving node device, and the wireless slave device is a target object device.

A plurality of cooperative agent nodes in the cooperative agent network system are wireless network service nodes in the edge domain of the Internet of things and provide cooperative agent services comprising cooperative matching access and concurrent data transmission for a plurality of peripheral wireless slave end devices serving as target object devices.

The cooperative agent service is a plurality of service node devices with the same or related device network attributes in a wireless edge domain, and provides cooperative services with consistent association for a plurality of target object devices and target device groups thereof based on device agent management, a plurality of cooperative agent nodes (as network service nodes) with the same or related device network attributes in the edge domain of the Internet of things and a plurality of peripheral proxied nodes form a cooperative agent network system through cooperative matching, and the service node devices provide network communication access and information interaction services for the target object devices through multi-node interconnection cooperative services in the edge domain network of the Internet of things.

Further, the target object device, i.e., the service object device: i.e. to devices bound or associated with the target service object, such as sensing devices and executing devices; wherein:

the sensing device: wearable devices, mobile monitoring devices, distributed sensors, and the like;

an execution device: peripheral control equipment, terminal receiving equipment and terminal monitoring equipment.

The target device group is a device group composed of a plurality of target object devices.

In a specific implementation process, the average power consumption of the wireless slave end equipment in a low-power-consumption standby state is far smaller than the average power consumption in a wireless transmission state, and the wireless transmission state is a synchronous matching state or a wireless connection state established based on trigger control response; typically, the average power consumption in the low power consumption standby state is composed of the power consumption of the status beacon mode and the synchronous detection mode.

A wireless low power device, i.e. a wireless device in a low power standby state, has not established a wireless synchronization or wireless link with any wireless master end equipment before it is activated without a trigger response.

The wireless beacon or the wireless electronic tag is used as a wireless low-power-consumption device and further comprises an indication refreshing module, wherein the indication refreshing module is used for executing refreshing operation according to the refreshing mode parameters and the refreshing information specified by the received configuration data, and restoring and adjusting the wireless mode parameters according to a preset mode based on the mode adjusting module, so that the wireless low-power-consumption device returns to and keeps a low-power-consumption standby state.

After the wireless low-power consumption device executes the indication refresh operation in an immediate or timing mode, the refresh check mark is implanted into the device state beacon as the state check code.

It should be noted that the synchronization modulation identifier is identification information used by the wireless master end device to indicate the wireless slave end device that maintains the synchronization matching state with the wireless master end device to perform wireless synchronization reception modulation.

The wireless synchronous receiving modulation comprises the following steps: the wireless slave end equipment dynamically adjusts the sending/receiving state and the relevant mode parameters of the equipment based on the current modulation characteristic parameters according to the synchronization indication of the wireless master end equipment which keeps the synchronization matching state with the wireless slave end equipment and the current modulation characteristic parameters according to the given time sequence.

The wireless synchronous receiving modulation comprises two processes of wireless synchronous modulation resetting and wireless synchronous modulation maintaining:

(1) wireless synchronization modulation reset: the wireless equipment carries out a readjustment setting and starting process on the current modulation characteristic parameters based on the modulation requirements;

(2) and (3) wireless synchronous modulation maintenance: the wireless device performs periodic state parameter switching at a given timing based on the current modulation characteristic parameter.

In the embodiment of the present invention, a wireless master end device sends a synchronization sequence beacon containing a synchronization modulation identifier to a plurality of wireless slave end devices in a synchronization matching state in a wireless directional broadcast manner in a specific wireless mode, specifically, the specific wireless mode refers to a specific wireless data transmission mode and associated parameters thereof, that is, specific wireless mode parameters; the specific wireless mode is a low-power Bluetooth mode and/or a single mode or a combined dual mode of RFID, and the wireless mode parameters comprise related parameters of the Bluetooth device in a low-power standby state and a wireless data transmission state. The wireless directional broadcast is a wireless broadcast signal sent by a wireless sending device to a specific network domain, a specific target device (wireless receiving device), or a target device group, typically, a beacon sending time slot of the wireless directional broadcast is kept time domain matched with a detection receiving time slot of the specific target device, and typically, when the wireless sending device performs the wireless directional broadcast, the wireless sending device simultaneously monitors and collects wireless beacons sent reversely by a plurality of wireless receiving devices in different wireless channels or time slots through wireless scanning detection, so as to implement a wireless directional broadcast mode, such as:

1) transmitting a wireless broadcast signal through a wireless modulation channel and a time slot of a specific physical layer;

2) the radio broadcast information is transmitted by means of specific algorithm or determinant parameter information.

Further, the wireless beacon is a wireless signal which is sent by the wireless device in an intermittent periodic manner in a wireless broadcast or response manner, contains set wireless device attributes and other application short messages, and can be obtained by the peripheral similar wireless devices through wireless detection.

The wireless mode parameters comprise related parameters of the wireless equipment in a low power consumption standby state and a wireless transmission state; the wireless master end equipment carries out wireless mode management including planning, reservation and switching on the wireless slave end equipment by adjusting the wireless mode parameters;

typically, the wireless mode parameters include associated parameters in the status beacon mode, the synchronization detection mode, and/or the wireless connection mode: 1) beacon broadcast parameters associated with a status beacon mode, 2) synchronization detection timeslot parameters associated with a synchronization detection mode;

when the wireless slave device is in the synchronization matching state, the wireless mode parameter includes a given synchronization time parameter, which is included in the synchronization sequence beacon.

The low power standby state is based on the following low power wireless mode parameters:

status beacon mode: duration Ts1, beacon transmission slot width T1;

synchronous detection mode: duration Ts2, synchronous detection slot width T2;

the synchronization time period is: ts-1 + Ts 2;

entering a sleep or hibernate state at times other than the slot widths Td1, Td 2;

when the status beacon mode is the connectable beacon mode, the slot width T1 includes a beacon transmission slot Tt1 and a beacon detection slot Tr 1: t1 ═ Tt1+ Tr 1.

Wherein, T1/Ts is the transmission slot duty ratio D1 of the status beacon mode, and T2/Ts is the detection slot duty ratio D2 of the synchronous detection mode.

When the duty ratios D1 and D2 of the time slots are far less than 1, the relative low-power consumption standby state can be maintained; if the synchronous detection time slot width T2 tends to be very small relative to the synchronous time period Ts, so that the synchronous detection time slot duty ratio D2 is much smaller than the transmission time slot duty ratio D1, the extra power consumption ratio caused by the synchronous detection mode will be very small, and a low-power consumption standby state with lower power consumption can be maintained; the following are typical configuration values of the wireless mode time parameter for the low power standby state:

t1 is of mS magnitude, D1 is 1% (corresponding to N1 broadcasts per second),

t2 was of the order of 10mS, D2 was 0.1% (equivalent to N2 times per minute);

where N1 and N2 are both roughly on the order of one bit.

In the embodiment of the present invention, when a wireless master device needs to actively send data to a plurality of wireless slave devices in a low power consumption standby state, a predetermined mode and a predetermined plan parameter according to a balance mechanism of the number of target devices for data transmission, response time and power consumption are determined for performing mode adjustment on the wireless mode parameter, including: and adopting the wireless mode parameters to transmit data, and transmitting updated or preset wireless mode parameters to the wireless slave end equipment in a directional wireless broadcast or currently available wireless data transmission mode.

The mode adjustment includes performing a synchronization mode adjustment on a parameter associated with the synchronization detection mode (i.e., a synchronization detection timeslot parameter). According to the adjustment orientation of the duty ratio of the synchronous detection time slot, the synchronous mode adjustment comprises synchronous enhancement adjustment and synchronous weakening adjustment, and the parameter value of the duty ratio of the synchronous detection time slot is increased or weakened respectively.

The mode adjustment further comprises a low power state recovery adjustment: and restoring and adjusting the wireless mode parameters according to a preset mode, so that the wireless slave end equipment returns to and keeps the original low-power-consumption standby state.

When the wireless slave end equipment is in a state beacon mode or a synchronous detection mode, the wireless master end equipment respectively sends wireless directional broadcast in a beacon detection time slot or a synchronous detection time slot of the wireless slave end equipment, so that wireless connection or adjustment is established with the wireless slave end equipment, or a synchronous matching state is established with the wireless slave end equipment, or wireless mode parameters of the wireless slave end equipment are adjusted.

The synchronization time parameter is a key time sequence parameter according to which the wireless slave end equipment periodically switches the wireless mode parameter of the wireless slave end equipment to keep a synchronization matching state with a certain wireless master end equipment; the synchronous sequence beacon is sent by the same wireless master end equipment, and the synchronous time parameters at least comprise a synchronous time period and a synchronous detection time slot width; when the wireless slave end equipment is in a synchronization matching state, the synchronization time parameter is contained in the cooperative matching parameter.

From the co-match parameters at least the following parameters can be derived:

1) matching the check codes: the related parameters of the currently matched cooperative agent network system, namely identifiable characteristic parameters such as domain address and group number of the same cooperative agent network system to which the plurality of cooperative agent nodes belong;

2) service identification code: and the identification code information distributed to the wireless slave end equipment is different from the identification code information of other wireless slave end equipment.

In the specific implementation process, the cooperative agent node is a cooperative service node device which provides cooperative agent service for a plurality of commonly served target object devices (as proxied nodes) based on the role of the device responsibility;

the cooperative agent node provides cooperative data communication service for a plurality of peripheral target object devices cooperatively matched with the cooperative agent node based on device agent management;

the cooperative agent node is a cooperative agent network system, and can provide replaceable and related cooperative services for target object equipment (as a proxied node) of the common services.

Step S102, under the synchronous matching state of the wireless slave end equipment and the wireless master end equipment, the wireless time slot synchronization is kept in each synchronization time period.

In the embodiment of the invention, in the synchronization matching state of the wireless slave end device and the wireless master end device, the wireless time slot synchronization is kept in each synchronization time period, and the synchronization time correction is carried out at least once in each synchronization validity period so as to keep the synchronization matching state.

It should be noted that the synchronization time identifier is identifier information that exists in the wireless beacon and reflects the relative time characteristics of the wireless beacon sent by the wireless device this time in the synchronization time period;

1) the synchronous time mark is used for reflecting the mark information of a specific phase time in a synchronous time period;

2) the synchronization time identifier may also be used to reflect identification information of the timing position within the synchronization time period relative to a particular time slot.

Relative time characteristics are as follows information/parameters (examples): time sequence code, time phase, synchronization offset (time), slot offset (time), etc.

The synchronization time identifier comprises one or a combination of the following relative time characteristics:

1) and (3) synchronous indication identification: marking a specific time sequence position in a synchronous time period Ts without directly giving a characteristic parameter;

2) synchronization offset identification: indicating the relative time offset from a particular timing position within the synchronization time period.

At least one of the synchronization beacons in the synchronization sequence beacons has a synchronization offset identification during one or more synchronization time periods;

the synchronization offset is identified as a relative time offset from a specific timing position within a corresponding synchronization time period that reflects the transceiving trailing edge time of the synchronization beacon in which it is located.

The synchronization sequence beacon is a series of wireless beacons which are transmitted in a wireless directional broadcast manner, serve a designated target device group and contain synchronization information; the synchronization sequence beacon is a periodic wireless beacon which is sent based on a synchronization timing trigger given by a synchronization time parameter, and at least one or one group of wireless beacons containing synchronization information is sent in one synchronization time period; multiple radio beacons are typically transmitted within a synchronization time period.

The synchronization beacon is a wireless beacon included in the synchronization sequence beacon and used for timing synchronization between the wireless transceiver devices.

Further, the synchronization sequence beacon contains a synchronization beacon identification code; the synchronous beacon identification code is information used for indicating the synchronous data transmission ID; the isochronous data transfer ID is an irreversible code (e.g., a cyclic sequence code or a clock correlation code) for a short period for wireless data transfers originating from any of the same network domain or higher level network nodes; therefore, the wireless slave end equipment can judge the redundancy and the effectiveness of the synchronous data transmission ID received this time only by comparing the synchronous data transmission ID received this time with the synchronous data transmission ID which has been responded and processed last time (namely last time).

It should be noted that the synchronization sequence beacon includes a packet synchronization sequence beacon for serving different or multiple target device groups; the packet synchronization sequence beacons are identified by being received by the wireless slave devices of different groups of target devices, either by any one or a combination of the following:

1) different device group IDs;

2) different synchronization time periods or their magnifications;

3) different synchronization beacon slot phases or widths.

Typically, when the synchronization packets transmitted to a plurality of target device groups are the same, the synchronization packets may be transmitted using the same synchronization beacon slot;

when the synchronous data packets sent to a plurality of target equipment groups are different, different synchronous data packets need to be sent in different synchronous beacon time slots; therefore, the sending redundancy of the synchronous data packet is reduced, and the sending efficiency is improved.

In a specific implementation process, the device status beacon is a wireless beacon which reflects the characteristic attributes and the current physical status of the device and the associated objects thereof and is fed back/sent by the wireless slave end device in a response mode.

The wireless master end equipment adjusts beacon broadcast parameters of the wireless slave end equipment in a state beacon mode by establishing synchronous matching or wireless connection, wherein the beacon broadcast parameters comprise beacon broadcast interval time, beacon broadcast duration, beacon broadcast power level, beacon broadcast modulation parameters and the like.

In a specific implementation process, the beacon broadcast interval time of the wireless master end device is adaptively adjusted based on the change of the beacon broadcast configuration information of the wireless master end device, and the method includes the following steps:

1. when the beacon broadcast configuration information is unchanged, the beacon broadcast time interval takes the normal configuration parameters,

2. and accelerating the beacon broadcasting once the beacon broadcasting configuration information is changed (such as matching request calling, successful matching establishment and state control feedback) within N periods, namely shortening the beacon broadcasting interval time within a short period.

In a specific implementation process, when the wireless slave-end device is in a synchronization matching state, the wireless slave-end device adjusts its beacon broadcast phase time based on the own group sequence code and/or matching code of the device, so that a plurality of wireless slave-end devices in the same synchronization matching state keep a certain beacon broadcast phase time difference.

It should be noted that, the cooperative agent network path refers to a network topology path formed by the cooperative agent nodes and provided for the specified wireless slave end device to perform wireless data transmission; the cooperative agent network path comprises a directly matched cooperative agent node which is accessed by a single point or multiple points and is used as an access point of the appointed wireless slave end equipment and the cooperative agent network system; the cooperative proxy network path also includes a network topology path formed by single-level or multi-level cooperative proxy nodes.

Further, cooperating with the matching agent to switch: when the data transmission efficiency between the wireless slave end equipment and the currently directly matched cooperative agent node is low, comparing the data transmission efficiency with the recent detection value of the received signal quality of other non-matched cooperative agent nodes, reselecting the currently cooperatively matched cooperative agent node according to a cooperative agent matching preferred condition rule if necessary, and correspondingly changing the matching check mark in the equipment state beacon of the cooperative agent node.

For the wireless slave end equipment in the synchronous matching state, the cooperative matching proxy switching also comprises synchronous matching switching; the synchronous matching switching comprises synchronous phase time adjustment and establishes a synchronous matching state with the new cooperative agent node; synchronous phase time adjustment is carried out according to the synchronous phase time difference between different cooperative agent nodes, so that synchronous matching switching can be completed transiently; the synchronization phase time difference is a pseudo-random value derived from the current synchronization time parameter and the co-proxy parameters of different co-proxy nodes that can be matched.

In the specific implementation process, on the premise that the cooperative agent matching optimization accords with the security association check, the rule/mechanism for carrying out priority on the cooperative agent nodes and the cooperative agent network systems subordinate to the cooperative agent nodes is optimized based on wireless signals;

after the wireless slave end equipment enters the optimized matching state, the matching priority of the wireless slave end equipment and the cooperative agent node is judged according to the received wireless directional broadcast signals sent by different cooperative agent nodes, and one or more cooperative agent nodes in a certain cooperative agent network system are selected according to the matching priority to establish the cooperative matching state.

Further, the security association check includes:

1) whether the cooperative agent parameters sent by the cooperative agent nodes meet the matching attribute conditions or not;

2) whether the cooperative agent node and the matched user APP accord with the cooperative consistency and the additional safety verification condition or not.

It should be noted that the cooperative matching state is that the wireless slave device is used as a proxied node to access the cooperative proxy network system, and at least one cooperative proxy node of the cooperative proxy network system can be selected as a current directly matching data transmission access point, where the cooperative synchronization matching state is:

the method comprises the steps that a wireless slave end device and a wireless master end device serving as a cooperative agent node establish a cooperative matching state and a synchronous matching state simultaneously or sequentially;

namely, the cooperative synchronous matching state is a cooperative matching state established by the wireless slave end device in a synchronous matching manner.

Step S103, when the wireless slave end equipment receives the synchronous modulation mark sent by the wireless master end equipment in the synchronous detection receiving time slot, the corresponding synchronous time slot modulation is executed according to the synchronous modulation mark, and the corresponding modulation verification mark is placed in the equipment state beacon.

In the embodiment of the present invention, the synchronous timeslot modulation is associated with a modulation characteristic parameter, i.e., a synchronous detection timeslot parameter (the synchronous detection timeslot parameter is included in the wireless mode parameter), and includes one or more sets of parameters of a synchronous detection timeslot width, a synchronous detection timeslot period, a synchronous detection timeslot phase, and a synchronous detection timeslot duty ratio, where the synchronous detection timeslot duty ratio is the synchronous detection timeslot width/the synchronous detection timeslot period.

It should be noted that, on the premise that the wireless slave end device and the wireless master end device maintain a synchronous matching state and a synchronous time parameter does not change, the wireless slave end device automatically performs synchronous time slot modulation on the device itself according to the current modulation requirement and in a self-adaptive rate modulation manner, where the self-adaptive time slot modulation includes: synchronous detection slot width modulation and synchronous detection slot period modulation.

Typically, a modulation manner of integer multiple N is adopted for time slot frequency modulation (i.e. mutual integer multiple between synchronization frequencies corresponding to the synchronization time period Ts is maintained), so as to maintain a synchronization matching state with the wireless master end device, and the following examples are given:

synchronous detection time slot cycle modulation:

reinforcement (acceleration): tr is Tr/N or Ts/N,

slow down (slow down): Tr-Tr or Ts-N,

wherein, Tr and Ts are respectively the current synchronous detection time slot period and the synchronous time period;

synchronous detection time slot width modulation:

reinforcement (widening): td N or Td 0N,

slow (narrow): td is Td/N or Td0/N,

wherein, Td0 are the current and initial sync detection timeslot widths, respectively.

The potential trigger state is that the wireless slave end equipment enters a state of preparation or waiting for triggering, and the wireless master end equipment or the wireless slave end equipment judges that the current state is close to the triggering condition in degree or probability based on a plan before the triggering condition is not reached according to the monitoring of the current associated variables and events; when the wireless slave end equipment enters a potential trigger state, the wireless slave end equipment enables the wireless slave end equipment to have faster trigger response (smaller trigger response time) to the possible forthcoming trigger control through wireless mode parameter mode adjustment and/or state feedback modulation; potential trigger states include states (examples) consisting of one or a combination of the following:

1. preparing an operating state: a user enters an APP or opens a control interface but does not start triggering operation;

2. event early warning state: the event trigger condition is approached but has not been reached,

3. a near touch state: the trigger source object enters the field of view but has not yet formed a trigger.

Further, the state feedback modulation is synchronous time slot modulation according to the feedback of the state monitoring variable; the state feedback modulation is a dynamic balance mechanism between the expected trigger response characteristic (such as receiving response time) of the wireless data receiving and the synchronous time slot power consumption of the wireless slave end equipment according to the feedback of the state monitoring variable.

The synchronous detection time slot power consumption refers to the power consumption of the wireless receiving equipment caused by synchronous detection; the power consumption of the synchronous detection time slot depends on the duty ratio of the synchronous detection time slot, when the duty ratio of the synchronous detection time slot of the wireless receiving equipment is larger, most of the total power consumption of the wireless equipment is the power consumption of the synchronous detection time slot; on the contrary, when the duty cycle of the synchronous detection timeslot of the wireless receiving device is sufficiently small, the power consumption of the synchronous detection timeslot is negligible relative to the total power consumption of the wireless device.

In the embodiment of the invention, the state monitoring variable is a monitoring physical quantity which reflects the current state characteristics of the equipment or the associated service object in the target object equipment;

when the state monitoring variable reaches or exceeds a set early warning value, correspondingly reducing the duty ratio of the synchronous detection time slot in the wireless mode parameter; and conversely, when the state monitoring variable is better than the set expected value, the duty ratio of the synchronous detection time slot is correspondingly increased.

The desired value of a state monitoring variable may be associated with a certain state of an expected performance demand: 1) emergency event triggered state: when the current emergency trigger is in an early warning or critical state, the wireless receiving response speed is higher; 2) wireless data transmission execution process state: whether the current wireless data receiving progress meets a preset requirement or not; 3) device power consumption or power state: whether the current device power consumption or power state can support the requirements of scheduled wireless data transmissions.

And step S104, when the wireless slave end equipment judges that the equipment itself or the service object thereof is in a potential trigger state, the wireless slave end equipment carries out state feedback modulation on the synchronous detection receiving time slot according to the associated state monitoring variable and puts the modulation verification identifier into the equipment state beacon.

In the embodiment of the invention, when the wireless slave end equipment receives the synchronous data packet contained in the synchronous sequence beacon, the wireless slave end equipment starts to receive the synchronous data packet sent by the wireless master end equipment in the synchronous detection receiving time slot, receives the synchronous data packet in a synchronous time slot modulation mode in the synchronous validity period, and places the received state verification code of the current corresponding synchronous data packet into the equipment state beacon.

The synchronization time correction is the calculation of time offset correction of the wireless slave end equipment for the self synchronization detection receiving time slot in the synchronization time period according to the synchronization time identification; the synchronization time correction is performed only once at most in one synchronization time period, and optionally, it may be defined that the synchronization time correction is performed only once at most in N synchronization time periods.

When the wireless slave end equipment carries out synchronous time correction based on the time slot phase relation (such as initial time lead of a given synchronous receiving time slot and detection time slot center matching), the deviation correction calculation is carried out according to the time slot matching time offset in the synchronous time identification;

the time slot matching time offset is the offset time of the time domain characteristic position (such as the time slot starting position) of the synchronous beacon sent by the wireless master end equipment at this time and the synchronous sending time slot thereof.

If the detection time slot center is matched, the initial time lead of the given synchronous receiving time slot is half of the synchronous detection time slot width Td, so that the synchronous detection time slot center is aligned with the initial time of the predicted synchronous sending time slot; setting the synchronization time period as Ts and the synchronization detection time slot width as Td, if the time slot matching time offset in the synchronization time mark is Delta T, the synchronization time correction is to correct the current timing value T of the synchronization period timer:

t'＝Td/2+ΔT

Δt＝t'-t

in the formula, t and t' are current timing values before and after the current synchronization time correction respectively, and delta t is the current synchronization time offset correction value; setting the current timing value t as 0 by the initial time of the synchronous detection time slot of the wireless slave end equipment; equivalently, the time interval between the start time of the synchronization detection timeslot and the current synchronization time correction is:

t1＝Ts-T1/2-Δt。

after each synchronization time correction is executed, the synchronization time correction of the current N (N > -1) synchronization time periods is masked based on a given default cycle number N and/or a correction offset of the current synchronization time correction.

It should be noted that, the wireless master device collects the status check codes contained in the device status beacon sent by all the wireless slave devices in the target device group in a wireless scanning and detecting manner, checks and monitors the receiving status of the synchronization data packets by all the wireless slave devices, and accordingly maintains or updates the sending process of the synchronization sequence beacon according to the status monitoring information.

In the specific implementation process, the synchronous matching state is a state that the wireless slave end equipment keeps effective wireless signal detection and data reception for certain matched wireless slave end equipment based on time synchronization;

in the specific implementation process, the wireless slave end device keeps a synchronous matching state with one or more cooperative agent nodes in a wireless time slot synchronization mode, and places a corresponding synchronous matching verification identifier into a device state beacon of the wireless slave end device.

And after the wireless slave end equipment is corrected based on the synchronization time and before no new synchronization time is corrected, periodically switching the wireless mode parameter according to the synchronization time sequence corresponding to the given synchronization time parameter so as to automatically maintain the wireless slave end equipment in a synchronization matching state with the wireless master end equipment.

In the specific implementation process, when a plurality of wireless slave end devices or target device groups keep a synchronous matching state with the same wireless master end device, the wireless master end device adjusts and configures the synchronization time parameters of the designated target device group and the wireless slave end devices thereof through synchronous configuration.

In the specific implementation process, the same wireless master end equipment establishes synchronous matching states with different wireless slave end equipment according to the dynamic balance requirements of the wireless master end equipment on standby power consumption and trigger response by using the same or different synchronous matching mode parameters;

and/or different wireless slave end devices or target device groups are adjusted and configured with different synchronization time parameters;

the method comprises the following steps: 1) single-cycle or multi-cycle synchronous matching; 2) single time slot or multi-time slot synchronous matching; 3) and synchronously matching single-magnification or multiple-magnification periods. The different synchronization matching modes are embodied in that the synchronization sequence beacon sent by the wireless master end device includes any one or a combination of the following to establish synchronization matching states with different synchronization matching mode parameters for different wireless slave end devices or target device groups:

1) multi-cycle synchronous matching: the synchronization sequence beacon sent by the wireless master end equipment comprises a plurality of different synchronization time periods;

2) multi-time slot synchronous matching: the same synchronous time period comprises a plurality of synchronous detection time slots with different detection phase time;

3) and multi-time cycle synchronous matching: based on the same synchronization time period, adjusting and configuring the synchronization time periods of different wireless master end equipment according to different multiplying powers; that is, the synchronization time period of the detection response of the wireless slave device is N times of the reference value of the synchronization time period.

In the specific implementation process, the wireless main end equipment carries out sending process management on a series of synchronous data packets formed by splitting a complete data packet or a data block through a sending task queue, wherein the sending process management comprises a priority sequencing mode and parameters for sending the synchronous data packets; the allowed retransmission limit time is for all transmission tasks in the completion transmission task queue.

When the wireless master end equipment monitors and judges that all members in the group member set complete the synchronous data packet receiving task according to a multi-selection superposition comparison method for a synchronous data packet of a certain packet sequence code, the synchronous data packet is removed from the sending task queue until the sending task queue is emptied.

The state check code fed back by the wireless slave end equipment comprises a multi-packet check identifier corresponding to each sub-packet sequence code of the series synchronous data packets.

Optionally, once the wireless slave device successfully receives the synchronous data packet of each packet sequence code, the wireless slave device may perform mode adjustment on its own wireless mode parameter in a predetermined manner according to the received synchronous modulation identifier, so as to reduce intermittent power consumption that may need to wait for other slaves to receive the data packet.

Prioritization includes any or a combination of the following modes and parameters: 1) a circular queue; 2) the transmission rotation condition: such as specified transmission time/frequency limit and/or slave machine receiving feedback success rate/quantity; 3) the success rate of the current slave receiving feedback is ranked (generally lower priority).

The technical effect of the sending process management is to improve the sending efficiency and success rate of the complete data packet.

The synchronization validity period is the longest duration allowed after one synchronization time correction, namely the maximum time interval of two synchronization time corrections, for keeping the synchronization matching state; equivalently, the synchronization validity period is a preset maximum time interval at which the wireless slave end device in the synchronization matching state receives the synchronization time identifier sent by the currently matched wireless master end device.

The wireless slave end equipment performs synchronization time correction at least once in each synchronization validity period so as to keep a synchronization matching state: and starting a new synchronization validity period timing every time the synchronization time correction is executed according to the synchronization time identification, otherwise, judging that the synchronization matching state is lost when the synchronization validity period timing exceeds the maximum value allowed by the synchronization validity period timing.

Further, the synchronous time slot modulation is wireless synchronous receiving modulation performed by the wireless slave end equipment on the synchronous detection receiving time slot related mode parameter, and the wireless slave end equipment performs wireless receiving modulation on the equipment according to the synchronous indication of the wireless master end equipment which keeps a synchronous matching state with the wireless slave end equipment.

Wherein the wireless reception modulation comprises: the wireless receiving equipment detects and receives the wireless signal from the wireless transmitting equipment based on the current modulation characteristic parameter and dynamically adjusts the associated mode parameter and the radio frequency parameter according to the given time sequence in the wireless detection and data receiving process; the wireless receiving modulation comprises wireless receiving time slot modulation and/or wireless receiving coupling modulation, and the wireless receiving time slot modulation is used for dynamically adjusting a wireless signal detection receiving time slot and a time sequence parameter of a wireless device; the wireless receiving coupling modulation is used for dynamically adjusting the radio frequency receiving parameters of the wireless signal receiving coupling performance of the wireless equipment.

Through wireless receiving modulation, the wireless slave end equipment can dynamically adjust the spatial range, sensitivity and stability of wireless signal coupling with the appointed wireless master end equipment based on the current requirement, so that the dynamic balance of flexibility based on the contextual model tends to be achieved between the power consumption of the wireless mode and the wireless signal coupling performance, and the wireless slave end equipment is beneficial to:

1) low power consumption: when high-sensitivity detection is not needed in a time domain or a space domain, a wireless mode and modulation parameters which are beneficial to low power consumption are kept, and the radio frequency power consumption of the equipment under a conventional idle mode is greatly reduced;

2) efficiency: limiting or expanding the physical space range of wireless signal detection when necessary so as to improve the detection efficiency of the wireless master end equipment nearby the periphery;

3) and (4) stability.

In the embodiment of the present invention, the modulation characteristic parameter associated with the synchronous timeslot modulation is given by any one or a combination of the following modes:

1) pre-configured modulation information: the method comprises the steps of configuring modulation characteristic parameters and modulation plan information in advance;

2) indication of synchronization modulation identity: the synchronization sequence beacon is contained in a synchronization sequence beacon transmitted by the wireless master end equipment;

3) based on state feedback modulation: and carrying out feedback modulation according to the state monitoring variables of the equipment and the service object thereof.

The modulation basis and trigger mechanism of the synchronous time slot modulation comprises synchronous indication, plan configuration, state feedback and associated events.

The wireless slave end equipment carries out self-adaptive time slot modulation on modulation characteristic parameters related to wireless time slot synchronization according to the state requirement of current synchronous data transmission, namely, the receiving of synchronous data packets is completed or interrupted.

The wireless slave end equipment carries out synchronous time slot modulation based on multi-time slot synchronous matching according to the selective receiving modulation requirement of the wireless slave end equipment on different data sub-packets (namely synchronous data packets of different sub-packet sequence codes) in a series of synchronous data packets; the multi-time slot synchronous matching means that the wireless slave end equipment dynamically sets a plurality of synchronous receiving time slots according to the matching relation with the detection phase time of a plurality of data sub-packets in one or a plurality of synchronous time periods.

The receiving modulation requirement is given by a receiving modulation multi-selection code, and the receiving modulation multi-selection code is a multi-selection code (such as a bit selection code) for performing multi-selection on different data sub-packets in a series of synchronous data packets;

the receive modulation multiple choice code is given by any one or a combination of: 1) predetermined default values: selecting all data packets (based on the total number of packets of the series of isochronous data packets); 2) given initial values: the synchronization group control code and/or the synchronization modulation identification are/is contained in the synchronization group control code and/or the synchronization modulation identification which are received by the wireless slave end equipment and sent by the wireless master end equipment; 3) and modifying the dynamic value: after the wireless slave end equipment receives each synchronous data packet, the selection of the synchronous data packet is shielded according to the corresponding packet sequence code, and the multi-packet check mark (the state check code received by the data packet) is updated.

When the wireless slave end equipment receives a series of synchronous data packets, synchronous detection is not required to be started in a synchronous sending time slot corresponding to a non-selected or successfully received data packet, so that the power consumption of the synchronous detection time slot per se is greatly reduced.

In the specific implementation process, the wireless slave end equipment with the wireless time slot synchronization in a synchronization matching state keeps the time slot matching of the synchronous detection time slot of the wireless slave end equipment and the synchronous sending time slot of the wireless master end equipment on the time domain through synchronous time correction; the time slot matching relation refers to the time relation of time domain matching alignment of the synchronous detection time slot of the wireless slave end equipment and the synchronous sending time slot of the wireless master end equipment; the synchronous detection receiving time slot comprises a synchronous detection time slot and a synchronous receiving time slot; the synchronous detection/reception time slots refer to the same or overlapped detection/reception time slots when a plurality of wireless slave-end equipment and a certain wireless master-end equipment establish or maintain a synchronous matching state.

The synchronous detection time slot parameter of the wireless slave end equipment refers to a preset (including pre-configuration and dynamic adjustment) parameter when synchronous data information is not received; the synchronous data information comprises a synchronous sequence beacon and/or a synchronous data packet sent by the wireless master end equipment synchronously matched with the synchronous data information; when the wireless slave device receives the synchronous data information in the preset synchronous detection time slot, the actual synchronous detection receiving time slot depends on the synchronous time slot modulation and the receiving mode of the current synchronous data packet.

The synchronous data packet is a data packet synchronous configuration data packet which is simultaneously and concurrently transmitted to a plurality of wireless slave end devices by a certain wireless master end device in a wireless time slot synchronous mode, namely a synchronous data packet containing configuration information, the synchronous data packet contains one or more continuous synchronous data packets, the synchronous data packet can be a single-detection or multi-detection data packet, and optionally, when the synchronous data packet or the synchronous data packet therein contains a group control multi-selection code of a group member set of a designated wireless receiving device.

Based on the given synchronization time period parameter, the actual dynamic synchronization time period is a fixed value or an adjustment value disturbed by pseudo-random:

Ts'＝Ts*(1+Δ)

where Δ is a pseudo-random perturbation code much smaller than 1.

It should be noted that, in the specific implementation process, the synchronous group control code is a code for selecting group control equipment or equipment groups and identifying the group control type/mode;

the synchronous group control code comprises a group control multi-selection code, and the group control multi-selection code is a code for performing multi-selection on all or part of members in one or more equipment groups to form a group member set.

The synchronous group control code comprises any one or combination of a group control operation mode, a group control multi-selection code and a state operation parameter; the group control multi-selection code comprises a group multi-selection code and/or a device multi-selection code.

Based on the group sequence code of the cooperative matching parameter, the wireless master end equipment converts the group sequence code into a bit selection code; the group control multi-selection code is a code that superposes the bit selection codes of all the device members included in the group member set according to logical or.

In the specific implementation process, when the wireless master device receives a superposable synchronous group control code queue sent by the network system host in a short group control processing period, the latest group control multi-selection code and the group control multi-selection code executed by the current target can be superposed according to logical or, and the superposed group control multi-selection code is used as the group control multi-selection code executed by the current target.

The composite group control multi-selection code is a synchronous group control code formed by compounding a plurality of group control multi-selection codes, wherein different group control multi-selection codes form different group member sets so as to carry out different group control operation modes and/or state operation parameters on different group member sets in the same target equipment group.

In the specific implementation process, when different group member sets in the device group are in different wireless mode states defined by wireless mode parameters, different group control operation modes are applied to the different group member sets in the same target device group according to the composite group control multi-selection code, that is, wireless mode parameter adjustment information is synchronously sent so as to synchronously perform multi-stage trigger control on different wireless slave-end devices or perform multi-stage trigger group control on the group member sets.

Any wireless slave end equipment in the equipment group receives the synchronous group control coding information contained in the synchronous sequence beacon in the synchronous detection receiving time slot, and if and only if the wireless slave end equipment judges that the network attribute of the wireless slave end equipment per se and the group control coding information accord with the correlation matching, the corresponding synchronous operation processing is executed by judging the synchronous beacon identification code.

It should be noted that, when the status check code fed back by a certain device member in the group member set received by the wireless master device is consistent with the monitored target value, the bit selection code of the wireless slave device is superimposed on the group control monitoring multi-option code; then comparing the group control monitoring multi-selection code with the group control multi-selection code, and if the two codes are equal, all members in the group member set complete the set operation task; equivalently, carrying out 'logical OR' operation on the single byte bit selection code E of the wireless slave end equipment and the corresponding byte R [ J ] of the group control monitoring multi-selection code pointed by the bit selection byte offset J, and assigning the single byte bit selection code E and the corresponding byte R [ J ] to the group control monitoring multi-selection code: and R [ J ] OR E, namely the bit selection code of the wireless slave end equipment is superposed in the group control monitoring multi-selection code.

The wireless master end equipment monitors and judges whether all members in the group member set complete state control operation or not in a multi-selection superposition comparison mode according to all state check codes in the collected group member set; if not, continuing to transmit the synchronous sequence beacon containing the synchronous group control code within the specified allowable retransmission limit time; if so, the sending of the synchronization sequence beacon containing the synchronization group control code is stopped.

When the same cooperative agent network system comprises a plurality of cooperative agent nodes, when group control feedback monitoring is carried out based on multi-selection superposition comparison, the group control multi-selection code needs to be replaced by a matching group control multi-selection code obtained in the following mode; the cooperative agent node transforms the group control multi-selection code G into a matching group control multi-selection code GA based on a logic AND operation based on the current agent matching multi-selection code A: g AND A is taken as GA, AND GA replaces G to carry out group control feedback monitoring based on multi-selection superposition comparison.

When the wireless master end equipment serving as a cooperative agent node receives an equipment state beacon sent by the wireless slave end equipment in a direct matching state, the bit selection code corresponding to the group sequence code is superposed in the matching monitoring multi-selection code; the cooperative agent node compares the matching monitoring multi-selection code with the agent matching multi-selection code based on the set matching monitoring period, and directly replaces the agent matching multi-selection code with the matching monitoring multi-selection code to update the agent matching multi-selection code when the matching monitoring multi-selection code and the agent matching multi-selection code are not equal; equivalently, performing 'logical or' operation on the single-byte bit selection code E of the wireless slave end equipment and the corresponding byte S [ J ] of the matching monitoring multi-selection code pointed by the bit selection byte offset J, and assigning the byte S [ J ] to the matching monitoring multi-selection code: s [ J ] OR E, namely, the bit selection code in the device status beacon is superposed in the matching monitoring multi-selection code; the cooperative agent node judges whether the wireless slave end equipment and the cooperative agent node are in a direct matching state or a non-direct matching state (namely, in the direct matching state of other agent nodes in the same cooperative agent network system) according to the matching check identifier in the equipment state beacon.

The state check code is a check identifier for checking whether the data packet reception is completed and whether the result state accords with the expectation; the state check code comprises a multi-packet check mark corresponding to a series of synchronous data packets; the multi-packet check mark is formed by superposition of a multi-packet bit selection code and/or a data check code; the multi-packet bit selection code is used for carrying out bit selection setting on receiving states in synchronous data packets of different sub-packet sequence codes so as to form a state superposition identifier; the data check code includes check information for the received current synchronization data packet and/or multiple synchronization data packets.

When the wireless slave end equipment receives a series of synchronous data packets formed by splitting a complete data packet in a plurality of synchronous detection receiving time slots, one or a combination of the following identification information corresponding to the current synchronous data packet is contained in the synchronous data information (which refers to a synchronous sequence beacon and/or the synchronous data packet itself): 1) a start address offset; 2) and (5) packet sequencing codes.

The byte length of the synchronization data packet is specified by a default value or a length identifier or an end character; optionally, the identification information item further includes a total packet number and/or a total length of the data packet split into the synchronization data packets.

As can be seen from the technical solution of the present invention illustrated in fig. 1, in the present invention, a synchronization sequence beacon containing a synchronization modulation identifier is sent to a plurality of wireless slave devices in a synchronization matching state by a wireless master device, so as to solve the problem of sending efficiency of dynamically modulated synchronous concurrent data, save network service resources, and greatly improve resource efficiency of concurrent data transmission; the method comprises the steps that wireless time slot synchronization based on a time slot matching relation is kept in each synchronization time period through wireless slave end equipment in a synchronization matching state, and synchronization time correction is executed at least once in a synchronization validity period, so that the problems of accuracy of synchronization time and stability of synchronization matching in the synchronization matching state are solved, and the trigger receiving response speed and success rate in a low power consumption state are improved by improving the detection time slot effect; when the wireless slave end equipment receives the synchronous modulation identification in the synchronous detection receiving time slot, the synchronous time slot modulation corresponding to the wireless slave end equipment is executed, and the corresponding modulation verification identification is placed into the equipment state beacon, so that the wireless master end equipment can carry out balance planning and adjustment on the expected performance requirement of wireless data receiving and the synchronous time slot power consumption, and the dynamic balance problem of synchronous data sending and receiving power consumption is solved; when the wireless slave end equipment is in a potential trigger state, the state feedback modulation is carried out on the synchronous detection receiving time slot according to the associated state monitoring variable, so that the standby power consumption of the wireless equipment in a non-potential trigger state in most time is greatly reduced, and the balance problem of wireless receiving trigger response and the standby power consumption is solved.

The embodiment of the present invention further discloses a wireless synchronous modulation apparatus, please refer to fig. 2-5, which includes: a modulation receiving module 201, a synchronization maintaining module 202, a modulation executing module 203 and a feedback modulation module 204, wherein:

a modulation receiving module 201, configured to receive, by a wireless slave end device, a synchronization sequence beacon containing a synchronization modulation identifier sent by a wireless master end device;

a synchronization maintaining module 202, configured to maintain wireless time slot synchronization based on a time slot matching relationship in each synchronization time period in a synchronization matching state between the wireless slave device and the wireless master device;

the modulation execution module 203 is used for the wireless slave end equipment to execute the corresponding synchronous time slot modulation according to the synchronous modulation identifier when the synchronous detection receiving time slot of the wireless slave end equipment receives the synchronous modulation identifier sent by the wireless master end equipment, and to place the corresponding modulation verification identifier into the equipment state beacon;

and the feedback modulation module 204 is configured to, when the wireless slave device determines that the device itself or the service object thereof is in the potential trigger state, perform state feedback modulation on the synchronous detection receiving timeslot by the wireless slave device according to the associated state monitoring variable, and place the modulation verification identifier into the device state beacon.

In a specific implementation process, fig. 5 is a schematic diagram of a wireless network topology path and a role relationship for a low-power-consumption target device service provided in this embodiment, and reflects the wireless network topology path and the role relationship for a cooperative agent node to provide a cooperative agent service for a low-power-consumption target device group; the embodied technical effects/values are synchronous modulation and concurrent data service for low-power-consumption target object equipment: a wireless cooperative perception core network (namely, a proxy node Mesh) constructed by cooperative proxy nodes provides cooperative proxy services for a low-power consumption target device group based on device proxy management including wireless mode management.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the method of the embodiments of the present invention may also be implemented by instructing related hardware through a computer program, where the computer program of the cooperative positioning method based on the wireless internet of things may be stored in a computer-readable storage medium, and when being executed by a processor, the computer program may implement the steps of the embodiments of the methods, that is, a certain wireless master device sends a synchronization sequence beacon containing a synchronization modulation identifier to a plurality of wireless slave devices in a synchronization matching state; under the synchronous matching state of the wireless slave end equipment and the wireless master end equipment, the wireless time slot synchronization is kept in each synchronization time period; when the wireless slave end equipment receives the synchronous modulation identification sent by the wireless master end equipment in the synchronous detection receiving time slot, the corresponding synchronous time slot modulation is executed according to the synchronous modulation identification, and the corresponding modulation verification identification is placed into the equipment state beacon; when the wireless slave end equipment judges that the equipment itself or the service object thereof is in a potential trigger state, the wireless slave end equipment carries out state feedback modulation on the synchronous detection receiving time slot according to the associated state monitoring variable and puts the modulation verification mark into the equipment state beacon.

Claims

1. A wireless synchronization modulation method, the method comprising:

2. The wireless synchronization modulation method as claimed in claim 1, wherein when the wireless slave device receives a synchronization packet included in the synchronization sequence beacon, the wireless slave device starts to receive the synchronization packet sent by the wireless master device during the synchronization detection receiving timeslot, receives the synchronization packet in a synchronization timeslot modulation manner during the synchronization validity period, and places a status check code currently corresponding to the reception of the synchronization packet into the device status beacon.

3. The method as claimed in claim 1, wherein the synchronization slot modulation is performed by adjusting associated modulation characteristic parameters, the modulation characteristic parameters include one or more of a synchronization detection slot width, a synchronization detection slot period, a synchronization detection slot phase, and a synchronization detection slot duty cycle.

4. The wireless synchronous modulation method according to claim 1 or 3, wherein on the premise that the wireless slave end device and the wireless master end device maintain a synchronous matching state and the synchronous time parameter does not change, the wireless slave end device automatically performs the synchronous timeslot modulation on itself according to a current modulation requirement in an adaptive rate modulation manner, and the adaptive timeslot modulation includes: synchronous detection slot width modulation and synchronous detection slot period modulation.

5. The wireless synchronization modulation method according to claim 1, wherein the synchronization modulation identifier is identification information used by the wireless master end device to indicate that the wireless slave end device keeping a synchronization matching state performs wireless synchronization reception modulation;

the wireless synchronous reception modulation comprises: and the wireless slave end equipment dynamically adjusts the sending/receiving state and the relevant mode parameters of the equipment based on the current modulation characteristic parameters according to the synchronization indication of the wireless master end equipment which keeps a synchronization matching state with the wireless slave end equipment and the synchronization indication of the wireless master end equipment according to a given time sequence.

6. A wireless synchronization modulation method according to claim 1, wherein the state feedback modulation is the synchronization slot modulation according to the feedback of the state monitoring variable; the state feedback modulation is a dynamic balance mechanism between the expected trigger response characteristic of the wireless slave end equipment for wireless data reception and the synchronous time slot power consumption according to the feedback of the state monitoring variable.

7. A wireless synchronous modulation method as claimed in claim 1 or 6, characterized in that the state monitoring variable is a monitoring physical quantity reflecting the current state characteristics of the device itself or the associated service object in the target object device;

when the state monitoring variable reaches or exceeds a set early warning value, correspondingly reducing the duty ratio of the synchronous detection time slot in the wireless mode parameter; and conversely, when the state monitoring variable exceeds a set expected value, correspondingly increasing the duty ratio of the synchronous detection time slot.

8. The wireless synchronization modulation method as claimed in claim 1, wherein the synchronization timeslot modulation is a wireless synchronization reception modulation performed by the wireless slave device on the synchronization detection reception timeslot related mode parameter, and the wireless slave device performs the wireless reception modulation on itself according to the synchronization indication of the wireless master device that maintains the synchronization matching state with the wireless slave device.

9. The wireless synchronization modulation method of claim 1, wherein the synchronization sequence beacon comprises a packet synchronization sequence beacon for serving different or multiple target device groups; the packet synchronization sequence beacons are identified by being received by wireless slave devices of different target device groups according to any one or combination of the following ways:

1) different device group IDs;

2) different synchronization time periods or their magnifications;

3) different synchronization beacon slot phases or widths.

10. A wireless synchronous modulation device is characterized in that the device is used as a wireless slave end device and comprises the following modules:

and the feedback modulation module is used for performing state feedback modulation on the synchronous detection receiving time slot by the wireless slave end equipment according to the associated state monitoring variable when the equipment or the service object thereof is in the potential trigger state, and placing the modulation verification identifier into the equipment state beacon.