CN114301565B - Wireless communication method and system between toy modules - Google Patents
Wireless communication method and system between toy modules Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides a wireless communication method between toy modules, which comprises the following steps executed in a transmitting-end toy: a frame structure generating step: generating a frame, wherein the frame includes a window number slot; the information carried by the window number time slots is used for indicating the paired toy modules to carry out clock synchronization aiming at frequency hopping. The invention also provides a corresponding system, a storage medium and a toy system. The frame structure application scene of the invention is that a plurality of different functional modules are communicated with each other in a network in a rapid and efficient way, and the requirements of burst mass data transmission and low-delay transmission can be met.
Description
Technical Field
The present invention relates to wireless communication methods, systems, storage media, and toy systems, and in particular, to wireless communication between toy modules. And more particularly to a method, system, storage medium and toy system for wireless communication between paired toy modules adapted for frequency hopping.
Background
The traditional toy system generally adopts protocols such as Bluetooth, wifi, zigbee and the like, and the frame structures of the protocols have the defects of being incapable of meeting the special pursuit of low delay, high burst and quick response of the protocols, so that the scene cannot be met for simultaneously carrying out large-data-volume communication on a plurality of modules and low delay. For example, patent document CN104645630a is based on a smart interactive system, toy and control method of separation computation, comprising: the device comprises a sensing module, a processing module, a communication module and an execution module; the sensing module is used for collecting external information of the toy and sending the external information to the processing module; the processing module is used for preprocessing the received external information and sending the preprocessed information to the communication module; the communication module sends the information preprocessed by the processing module to the control equipment, and sends a control instruction corresponding to the external information sent by the control equipment to the processing module; the processing module is also used for converting the control instruction into a corresponding control signal and sending the control signal to the execution module, and the execution module executes the control signal. The communication module in patent document CN104645630a transmits information wirelessly or by wire. Wherein, the wireless mode includes: WIFI, bluetooth and zigbee network modes.
Disclosure of Invention
In view of the shortcomings in the prior art, it is an object of the present invention to provide a method and system for wireless communication between toy modules.
According to the wireless communication method between toy modules provided by the invention, the method comprises the following steps executed in a transmitting-end toy:
a frame structure generating step: generating a frame, wherein the frame includes a window number slot;
the information carried by the window number time slots is used for indicating the paired toy modules to carry out clock synchronization aiming at frequency hopping.
Preferably, the window number slot includes:
the chip type domain is used for bearing the time required by the chip in the transmitting end toy module for transmitting data and receiving the data so as to instruct the receiving end toy module to set the transmitting time and the receiving time for the corresponding clock of the data according to the time required by the transmitting end toy module for transmitting the data and the receiving data;
and the in-network serial number field is used for bearing the time when the sending end toy module sends data so as to instruct the receiving end toy module to synchronously set the time of receiving the data for the corresponding clock of the data according to the time of sending the data.
Preferably, the paired plurality of toy modules are in a first wireless communication ad hoc network; in the first wireless communication ad hoc network, clock synchronization is carried out between a sending end toy module and a receiving end mould module for transmitting first type data through the frame so as to realize frequency hopping communication, and data transmission is carried out through the frame;
wherein the first type of data is data that satisfies any one or more of the following conditions:
condition a: data whose data transmission amount is larger than a set transmission amount threshold;
condition B: the data content is data of a pre-specified content;
condition C: data with a delay requirement higher than a set delay threshold;
condition D: the transmitting end toy module and/or the receiving end toy module are not in an energy-saving state.
Preferably, the frame further comprises:
the source address time slot is used for bearing the equipment address of the transmitting end toy module;
a frame sequence number time slot, wherein the frame sequence number time slot is used for bearing identification information of a frame;
and the data packet time slot is used for carrying effective data.
According to the invention, a wireless communication system between paired toy modules comprises the following modules in a transmitting end toy:
a frame structure generation module: generating a frame, wherein the frame includes a window number slot;
the information carried by the window number time slots is used for indicating the paired toy modules to carry out clock synchronization aiming at frequency hopping.
Preferably, the window number slot includes:
the chip type domain is used for bearing the time required by the chip in the transmitting end toy module for transmitting data and receiving the data so as to instruct the receiving end toy module to set the transmitting time and the receiving time for the corresponding clock of the data according to the time required by the transmitting end toy module for transmitting the data and the receiving data;
and the in-network serial number field is used for bearing the time when the sending end toy module sends data so as to instruct the receiving end toy module to synchronously set the time of receiving the data for the corresponding clock of the data according to the time of sending the data.
Preferably, the paired plurality of toy modules are in a first wireless communication ad hoc network; in the first wireless communication ad hoc network, clock synchronization is carried out between a sending end toy module and a receiving end mould module for transmitting first type data through the frame so as to realize frequency hopping communication, and data transmission is carried out through the frame;
wherein the first type of data is data that satisfies any one or more of the following conditions:
condition a: data whose data transmission amount is larger than a set transmission amount threshold;
condition B: the data content is data of a pre-specified content;
condition C: data with a delay requirement higher than a set delay threshold;
condition D: the transmitting end toy module and/or the receiving end toy module are not in an energy-saving state.
Preferably, the frame further comprises:
the source address time slot is used for bearing the equipment address of the transmitting end toy module;
a frame sequence number time slot, wherein the frame sequence number time slot is used for bearing identification information of a frame;
and the data packet time slot is used for carrying effective data.
According to the present invention there is provided a computer readable storage medium storing a computer program which when executed by a processor performs the steps of a method of wireless communication between toy modules.
According to the present invention there is provided a toy system comprising a plurality of toy modules;
the toy modules communicate by adopting the wireless communication method between the toy modules, or comprise a wireless communication system between the paired toy modules, or comprise the computer readable storage medium storing the computer program.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention replaces time slots/domains/data in the traditional protocol to suit the needs of a multi-toy module communication scenario in a wireless communication ad hoc network in a toy system.
2. The frame structure of the invention can realize rapid and efficient communication between toy modules, and is especially suitable for burst mass data transmission and low-delay situations.
3. The invention plays a role of clock synchronization through window time slots, plays a role of ensuring accurate frequency hopping, and effectively improves the data transmission performance among modules in a toy system scene.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
In the application scenario of the toy system, the toy system has a plurality of toy modules, such as a sensor module, a management module, an execution module, and the like, and the toy modules are separated from each other, so that data transmission needs to be performed through a wireless communication network. Under the control of the management module, the sensor module collects sensing data such as sound and images, the management module processes the sensing data to generate control instruction data, and the execution module executes corresponding actions such as sound, light and electricity according to the control instruction data. Because sensing and motion are often immediate, an interesting interaction is created between the toy system, such as a robot, and surrounding users or items. Therefore, the interaction effect is greatly reduced if the sensing data or the control command data cannot be quickly transmitted to generate higher delay. The traditional toy system generally adopts protocols such as Bluetooth, wifi, zigbee and the like, and the frame structures of the protocols have the defects of being incapable of meeting the special pursuit of low delay, high burst and quick response of the protocols, so that the scene cannot be met for simultaneously carrying out large-data-volume communication on a plurality of modules and low delay.
According to the invention, a wireless communication method between toy modules comprises the steps executed in a transmitting-end toy: a frame structure generating step: generating a frame, wherein the frame includes a window number slot; the window number time slot comprises a chip type domain and an in-network sequence number domain; the frame also includes a source address slot, a frame sequence number slot, and a packet slot. In a preferred embodiment, the frame is composed of a window number time slot, a source address time slot, a frame sequence number time slot and a data packet time slot; the window number time slot is composed of a chip type domain and an in-network sequence number domain. The following table shows:
the source address slot uses 4 bytes for carrying the device address of the transmitting toy module, e.g., the MAC address of the transmitting device. The frame number time slot uses 1 byte for carrying the frame identification information, for example, the frame identification information is represented by a digital number, and the frame identification information is increased by 1 each time a new data packet is sent, so as to distinguish different frames, and the frame retransmission filtering is performed. The packet slot uses 26 bytes for carrying valid data. The maximum number of bytes of the data packet slot is constrained by the RF chip limitations, depending on the RF chip.
In the toy system scenario, taking a classroom as an example, multiple toy systems are generally distributed on different desks, each desk has a group of students playing with one set of toy systems on the desk, toy modules on different toy systems are paired respectively, the toy modules on one desk are paired with each other, a control instruction is only valid between paired toy modules, i.e. paired toy modules have the same pairing identifier, and data and/or control instructions sent by the toy modules can only be executed by other toy modules in the same pairing group, so that the toy modules in one pairing group cannot control the toy modules in the other pairing group. Pairing can be achieved by referring to the prior art such as CN111054085a, which is not described herein. However, different toy systems may communicate at a uniform time using the same or similar frequencies, resulting in interference. Therefore, frequency hopping is required, and in the process of frequency hopping, clock synchronization is required to be kept between the transmitting end toy module and the receiving end toy module so as to synchronize frequency hopping at the same time. The information carried by the window number time slot is used for indicating the paired toy modules to perform clock synchronization aiming at frequency hopping. The window number slot includes: chip type field, in-network sequence number field. Of the 1 byte of the window number slot, 6 bits are used for the in-network sequence number field and 2 bits are used for the chip type field. The chip type field is used for bearing the time required by the chip in the transmitting end toy module for transmitting data and receiving data so as to instruct the receiving end toy module to set the transmitting time and the receiving time for the corresponding clock synchronization of the data according to the time required by the transmitting end toy module for transmitting data and the receiving end toy module for receiving data. The in-network sequence number field is used for bearing the time when the sending end toy module sends data so as to instruct the receiving end toy module to synchronously set the time of receiving the data for the corresponding clock of the data according to the time of sending the data. The in-network serial number is preferably generated by the sending end toy module when sending data, the in-network serial number comprises the moment when the sending end toy module sends the data, the in-network serial number is generated by the sending end toy module, the receiving end toy module receives the post-synchronization clock and the channel, and all devices in the network are ensured to be in the same channel at any moment.
The number of hopping channels may be allowed to be multiple, and these channels may be randomly allocated or may be pre-programmed to avoid hopping to the same channel. The paired toy modules are in a first wireless communication ad hoc network; in the first wireless communication ad hoc network, clock synchronization is performed between a sending end toy module and a receiving end mould module for transmitting first type data through the frame so as to realize frequency hopping communication, and data transmission is performed through the frame. The first wireless communication ad hoc network uses a data transmission rate lower than that of the frame structure in network construction pairing. That is, the frame structure is preferentially used to transmit data requiring high-rate transmission, denoted as first-type data. The first type of data is data that satisfies any one or more of the following conditions: condition a: data whose data transmission amount is larger than a set transmission amount threshold; condition B: the data content is data of a pre-specified content; condition C: data with a delay requirement higher than a set delay threshold; condition D: the transmitting end toy module and/or the receiving end toy module are/is not in an energy-saving state, and the energy-saving state comprises a sleep state and a dormant state.
As shown in the table below, of the 26 bytes of the packet slot, 1 byte is used for the command field and 25 bytes are used for the parameter field. Of the 1 bytes of the command field, 6 bits are used for CMD command hint Fu Ziyu, 2 bits are used for MODE subfield:
further, in the CMD command prompt subfield, different binary values in the CMD command prompt subfield indicate different commands as shown in the following table.
Further, in the parameter field, two bytes are used for the type parameter subfield and the remaining bytes are used for the control parameter subfield, as shown in the following table:
the present invention also provides a wireless communication system between paired toy modules, and a person skilled in the art may implement the wireless communication system between the paired toy modules by performing the step flow of the wireless communication method between the toy modules, i.e. the wireless communication method between the toy modules may be understood as a preferred implementation of the wireless communication system between the paired toy modules.
According to the invention, a wireless communication system between paired toy modules comprises the following modules in a transmitting end toy:
a frame structure generation module: generating a frame, wherein the frame includes a window number slot;
the information carried by the window number time slots is used for indicating the paired toy modules to carry out clock synchronization aiming at frequency hopping.
The window number slot includes: the chip type domain is used for bearing the time required by the chip in the transmitting end toy module for transmitting data and receiving the data so as to instruct the receiving end toy module to set the transmitting time and the receiving time for the corresponding clock of the data according to the time required by the transmitting end toy module for transmitting the data and the receiving data; and the in-network serial number field is used for bearing the time when the sending end toy module sends data so as to instruct the receiving end toy module to synchronously set the time of receiving the data for the corresponding clock of the data according to the time of sending the data.
The paired toy modules are in a first wireless communication ad hoc network; in the first wireless communication ad hoc network, clock synchronization is carried out between a sending end toy module and a receiving end mould module for transmitting first type data through the frame so as to realize frequency hopping communication, and data transmission is carried out through the frame; wherein the first type of data is data that satisfies any one or more of the following conditions: condition a: data whose data transmission amount is larger than a set transmission amount threshold; condition B: the data content is data of a pre-specified content; condition C: data with a delay requirement higher than a set delay threshold; condition D: the transmitting end toy module and/or the receiving end toy module are not in an energy-saving state.
The frame further includes: the source address time slot is used for bearing the equipment address of the transmitting end toy module; a frame sequence number time slot, wherein the frame sequence number time slot is used for bearing identification information of a frame; and the data packet time slot is used for carrying effective data.
Those skilled in the art will appreciate that the systems, apparatus, and their respective modules provided herein may be implemented entirely by logic programming of method steps such that the systems, apparatus, and their respective modules are implemented as logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers, etc., in addition to the systems, apparatus, and their respective modules being implemented as pure computer readable program code. Therefore, the system, the apparatus, and the respective modules thereof provided by the present invention may be regarded as one hardware component, and the modules included therein for implementing various programs may also be regarded as structures within the hardware component; modules for implementing various functions may also be regarded as being either software programs for implementing the methods or structures within hardware components.
According to the present invention there is provided a computer readable storage medium storing a computer program which when executed by a processor performs the steps of a method of wireless communication between toy modules.
According to the present invention there is provided a toy system comprising a plurality of toy modules; the toy modules communicate by adopting the wireless communication method between the toy modules, or comprise a wireless communication system between the paired toy modules, or comprise the computer readable storage medium storing the computer program.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. A method of wireless communication between toy modules, comprising the steps performed in a sender toy of:
a frame structure generating step: generating a frame, wherein the frame includes a window number slot;
the information carried by the window number time slots is used for indicating the paired toy modules to carry out clock synchronization aiming at frequency hopping;
the paired toy modules are in a first wireless communication ad hoc network;
the first wireless communication ad hoc network uses a data transmission rate lower than that of the frame structure in network construction pairing.
2. The method of wireless communication between toy modules of claim 1, wherein the window number slots comprise:
the chip type domain is used for bearing the time required by the chip in the transmitting end toy module for transmitting data and receiving the data so as to instruct the receiving end toy module to set the transmitting time and the receiving time for the corresponding clock of the data according to the time required by the transmitting end toy module for transmitting the data and the receiving data;
and the in-network serial number field is used for bearing the time when the sending end toy module sends data so as to instruct the receiving end toy module to synchronously set the time of receiving the data for the corresponding clock of the data according to the time of sending the data.
3. The method of wireless communication between toy modules of claim 1, wherein in the first wireless communication ad hoc network, a transmitting-end toy module transmitting first type data and a receiving-end mold module perform clock synchronization through the frame to achieve frequency hopping communication, and perform data transmission through the frame;
wherein the first type of data is data that satisfies any one or more of the following conditions:
condition a: data whose data transmission amount is larger than a set transmission amount threshold;
condition B: the data content is data of a pre-specified content;
condition C: data with a delay requirement higher than a set delay threshold;
condition D: the transmitting end toy module and/or the receiving end toy module are not in an energy-saving state.
4. The method of wireless communication between toy modules of claim 1, wherein the frame further comprises:
the source address time slot is used for bearing the equipment address of the transmitting end toy module;
a frame sequence number time slot, wherein the frame sequence number time slot is used for bearing identification information of a frame;
and the data packet time slot is used for carrying effective data.
5. A wireless communication system between paired toy modules, comprising the following modules in a transmitting toy:
a frame structure generation module: generating a frame, wherein the frame includes a window number slot;
the information carried by the window number time slots is used for indicating the paired toy modules to carry out clock synchronization aiming at frequency hopping;
the paired toy modules are in a first wireless communication ad hoc network;
the first wireless communication ad hoc network uses a data transmission rate lower than that of the frame structure in network construction pairing.
6. The wireless communication system between paired toy modules of claim 5, wherein the window number slot comprises:
the chip type domain is used for bearing the time required by the chip in the transmitting end toy module for transmitting data and receiving the data so as to instruct the receiving end toy module to set the transmitting time and the receiving time for the corresponding clock of the data according to the time required by the transmitting end toy module for transmitting the data and the receiving data;
and the in-network serial number field is used for bearing the time when the sending end toy module sends data so as to instruct the receiving end toy module to synchronously set the time of receiving the data for the corresponding clock of the data according to the time of sending the data.
7. The wireless communication system between paired toy modules of claim 5, wherein in the first wireless communication ad hoc network, a transmitting end toy module transmitting first type data and a receiving end mold module are clock synchronized through the frame to achieve frequency hopping communication, and data transmission is performed through the frame;
wherein the first type of data is data that satisfies any one or more of the following conditions:
condition a: data whose data transmission amount is larger than a set transmission amount threshold;
condition B: the data content is data of a pre-specified content;
condition C: data with a delay requirement higher than a set delay threshold;
condition D: the transmitting end toy module and/or the receiving end toy module are not in an energy-saving state.
8. The wireless communication system between paired toy modules of claim 5, wherein the frame further comprises:
the source address time slot is used for bearing the equipment address of the transmitting end toy module;
a frame sequence number time slot, wherein the frame sequence number time slot is used for bearing identification information of a frame;
and the data packet time slot is used for carrying effective data.
9. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor carries out the steps of the wireless communication method between toy modules according to any one of claims 1 to 4.
10. A toy system comprising a plurality of toy modules;
the toy modules communicate using the wireless communication method between toy modules of any one of claims 1 to 4, or comprise the wireless communication system between paired toy modules of any one of claims 5 to 8, or comprise the computer readable storage medium storing the computer program of claim 9.
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| CN108809617A (en) * | 2018-04-18 | 2018-11-13 | 京信通信系统（中国）有限公司 | A kind of delay compensation method and terminal |
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- 2021-12-30 CN CN202111662227.9A patent/CN114301565B/en active Active
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| JP2012105152A (en) * | 2010-11-11 | 2012-05-31 | Mitsubishi Electric Corp | Clock-time synchronization method, communication system, and communication device |
| CN103874172A (en) * | 2012-12-14 | 2014-06-18 | 深圳先进技术研究院 | Data transmission method and system in wireless body area network |
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