CN104038905B - A kind of method of use AT instructions control POC cluster communication modules - Google Patents
A kind of method of use AT instructions control POC cluster communication modules Download PDFInfo
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Abstract
A kind of method that the present invention instructs control POC cluster communication modules for use AT, this instructs the method for control POC cluster communication modules to include two steps using AT.Step 1: user terminal transmit a request to POC cluster communication modules：User terminal arrives POC cluster communication modules by sending the first AT instructions, and POC cluster communication modules are responded；Step 2: POC cluster communication modules send the notification to user terminal：When the state of POC cluster communication modules changes, POC cluster communications module notifies user terminal by sending the 2nd AT instructions.The method of the use AT instructions control POC cluster communication modules can realize the modularization of cluster communication function, it is possible to simplify the development process of trunking communication terminal；And then make POC mobile phone terminals producer without paying close attention to implementing for POC functions, it is only necessary to the function of POC cluster communication modules is called, with regard to various professional trunking communication terminals can be developed.
Description
Technical field
The present invention relates to communication field, more particularly to POC cluster communications field.
Background technology
PTT is that POC business is a kind of semiduplex, instant, multi-party speech communication business, it is allowed to one-to-one, one
To many calls.It is similar to intercom, can only work as a side and finish, the opposing party can just speak, that is, in each group, while only
There can be a people in speech, other people answer.The cluster based on radio data network that POC business is realized using voip technology leads to
News business, is different from traditional intercom, adjusts the distance and does not limit, if having wireless network place can to use business,
It is the extension to conventional cluster communication products and replacement.
POC business has succeeded to be used in multiple fields, for example Logistic Scheduling, point duty, taxi management and
Fields such as the scheduling of freight, but during business use, it has been found that the deficiency and shortcoming of some existing POC business：Open
The special phone solution company of hair terminal needs is to be customized exploitation, development cost is high, difficulty is big and the cycle is long.Therefore, it is existing
Some technologies are also urgently further improved.
The content of the invention
Proposed the invention aims to solve the above problems a kind of using AT instruction control POC cluster communication modules
Method；This instructs the method for controlling POC cluster communication modules to make POC mobile phone terminals producer without paying close attention to POC functions using AT
Implement, it is only necessary to the function of POC cluster communication modules is called, with regard to various professional trunking communication terminals can be developed.It is logical
Cross the present invention, it is possible to achieve the modularization of cluster communication function, it is possible to simplify the development process of trunking communication terminal.
Technical scheme is as follows：
A kind of method that the present invention instructs control POC cluster communication modules for use AT, this uses AT instruction control POC collection
The method of group's communication module includes two steps：
Step 1: user terminal transmit a request to POC cluster communication modules：
User terminal arrives POC cluster communication modules by sending the first AT instructions, and POC cluster communication modules are responded；
Step 2: POC cluster communication modules send the notification to user terminal：
When the state of POC cluster communication modules changes, POC cluster communications module by send the 2nd AT instruction come
Notify user terminal.
Further, in the step one, the response that POC cluster communications module is carried out is asynchronous response, i.e., when POC clusters
Communication module is received after the instructions of the first AT with session identification of user terminal transmission, and POC cluster communication modules pass through the 3rd
AT instructions return to one article and represent that the receipt for having been received by the first AT instructions and handling, to user terminal, then passes through the step again
The result of execution is returned to user terminal by rapid two by the 2nd AT instructions.
Further, in the step one, the response that POC cluster communications module is carried out is sync response, i.e., when POC clusters
Communication module is received after the instructions of the first AT with session identification of user terminal transmission, and POC cluster communications module will be held immediately
Capable result returns to user terminal by the 3rd AT instructions.
Further, the 3rd AT instructions are made up of respond request, result, the 3rd operation ID and the 3rd extension content；
The respond request is defined as the operation that POC cluster communications module instructs the request after responding to the first AT, and length accounts for one
Individual byte；The result is response results of the POC cluster communications module to user terminal requests, and long fill accounts for a byte, and 0 represents
Inerrancy, other values are wrong；The 3rd operation ID is that user terminal sends meaning when asking to POC cluster communications module
Fixed ID, length accounts for two bytes, and the 3rd extension content is the result that POC cluster communications module is performed.
Further, the first AT instructions are made up of operation requests, the first operation ID and the first extension content；The behaviour
Make request and be defined as the operation that user terminal is asked, length accounts for a byte；The first operation ID is specified by user terminal,
Length accounts for two bytes；Described first extends content to need some subsidiary parameters in operation requests.
Further, the first AT instruction tapes have the session identification for identifying this request.
Further, the 2nd AT instructions are by notifying request, the extensions of code and second content to constitute；It is described to notify request
The instruction that POC cluster communications module is given notice to user terminal is defined as, length accounts for a byte；The code is interior to notify
The parameter of appearance；The second extension content is the content notified.
Beneficial effects of the present invention：
The method of the use AT instructions control POC cluster communication modules can realize the modularization of cluster communication function,
And the development process of trunking communication terminal can be simplified；And then make POC mobile phone terminals producer without the specific reality of concern POC functions
It is existing, it is only necessary to the function of POC cluster communication modules to be called, with regard to various professional trunking communication terminals can be developed.
Brief description of the drawings
Fig. 1 is the means of communication of user terminal and POC cluster communication modules.
Embodiment
In order to better illustrate the present invention, it is described further in conjunction with embodiment with accompanying drawing.
Technical scheme is as follows：
A kind of method that the present invention instructs control POC cluster communication modules for use AT, this uses AT instruction control POC collection
The method of group's communication module includes two steps.As shown in Figure 1：
Step 1: user terminal transmit a request to POC cluster communication modules：
User terminal arrives POC cluster communication modules by sending the first AT instructions, and POC cluster communication modules are responded；
Step 2: POC cluster communication modules send the notification to user terminal：
When the state of POC cluster communication modules changes, POC cluster communications module by send the 2nd AT instruction come
Notify user terminal.
In the step one, the response that POC cluster communications module is carried out can be asynchronous response, i.e., when POC cluster communication moulds
Block is received after the instructions of the first AT with session identification of user terminal transmission, and POC cluster communications module is instructed by the 3rd AT
Return to one article and represent that the receipt for having been received by the first AT instructions and handling, then again will by the step 2 to user terminal
The result of execution returns to user terminal by the 2nd AT instructions.
In the step one, the response that POC cluster communications module is carried out is also sync response, i.e., when POC cluster communication moulds
Block is received after the instructions of the first AT with session identification of user terminal transmission, and POC cluster communications module is immediately by the knot of execution
Fruit returns to user terminal by the 3rd AT instructions.
The first AT instructions are made up of operation requests, the first operation ID and the first extension content；The operation requests are determined
The operation that justice is asked by user terminal, length accounts for a byte；The first operation ID is specified by user terminal, and length accounts for two
Individual byte, described first extends content to need some subsidiary parameters in operation requests.The first AT instruction tapes have for
Identify the session identification of this request.
The 2nd AT instructions are by notifying request, the extensions of code and second content to constitute；The notice request is defined as POC
The instruction that cluster communication module is given notice to user terminal, length accounts for a byte；The code is the parameter of content of announcement；
The second extension content is the content notified.
The 3rd AT instructions are made up of respond request, result, the 3rd operation ID and the 3rd extension content；The response please
Ask and be defined as the operation that POC cluster communications module instructs the request after responding to the first AT, length accounts for a byte；It is described
As a result it is response results of the POC cluster communications module to user terminal requests, long fill accounts for a byte, 0 represents inerrancy, other
It is worth to be wrong；The 3rd operation ID is that user terminal sends ID specified when asking, length to POC cluster communications module
Two bytes are accounted for, the 3rd extension content is the result that POC cluster communications module is performed.
Specifically, the form of the first AT instructions：
| Operation requests | First operation ID | First extension content |
Operation requests：The operation that user terminal is asked is defined as, length accounts for a byte；
First operation ID：Specified by user terminal, length accounts for two bytes；Each user terminal is to POC cluster communication moulds
When block sends request, this operation can be identified with the ID of two bytes of band, the return instruction of this operation can return to request
When operation ID.
First extension content：Optional content, some operation requests are needed with some parameters.
The form of 2nd AT instructions：
| Notify request | code | Second extension content |
Notify request：The instruction given notice for POC cluster communications module to user terminal, length accounts for a byte；
code：The parameter of content of announcement；
Second extension content：The content of notice.
The form of 3rd AT instructions：
| Respond request | As a result | 3rd operation ID | 3rd spreading result |
Response instruction：POC cluster communications module instructs the operation of the request after responding to the first AT, and length accounts for one
Byte；
As a result：POC cluster communications module is to the response results of user terminal requests, and length, which is filled, accounts for a byte, and 0 represents error-free
By mistake, other values are wrong；
3rd operation ID：User terminal sends ID specified when asking to POC cluster communications module, and length accounts for two words
Section.
3rd spreading result：The result that POC cluster communications module is performed, is optional content.
Illustrate the present invention in conjunction with specific example.
New AT instructions are defined first, it is as follows：
The first AT that user terminal is sent to POC cluster communications module is instructed：
AT+POC=command contents；
The 2nd AT instructions and the 3rd AT that POC cluster communications module is sent to user terminal are instructed：
+POC:Command content；
1. user terminal sends the first AT instructions to open answering in POC cluster communication modules to POC cluster communications module
With or set POC cluster communication modules attribute.
When the application in POC cluster communication modules there is not opening, the application in POC cluster communication modules can be opened, works as POC
Application in cluster communication module has already turned on, and the status information that can update application in POC cluster communication modules is whole to user
End.The parameter of the application in the POC cluster communication modules of band is needed when sending the first AT instructions：Whether open TTS functions and be
The status information of application in no notice POC cluster communication modules.Instruction format is as follows：
| 00 | First operation ID | TTS | NOTIFY | It is offline to report |
Wherein TTS, NOTIFY and offline report respectively accounts for a byte：1 represents to open, and 0 represents to close.It is offline to report acquiescence
Open.Following example：
AT+POC=000000010001；Represent to open the application in POC cluster communication modules, TTS functions are opened, and are notified
Function is closed, and offline report is opened.
AT+POC=000000010100；Represent to open the application in POC cluster communication modules, TTS functions are opened, and are notified
Function is opened, and offline report is closed.
AT+POC=0000000001；Represent to open the application in POC cluster communication modules, TTS functions are closed, and notify work(
It can open, offline report is opened.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 00 | As a result | 3rd operation ID |
Example：+POC:0000000001.
2. user terminal instructs the parameter information for setting the application in OC cluster communication modules, including IP by the first AT
Location, account and password, can only set one therein or several, and each must be terminated with branch.Instruction format is as follows：
| 01 | Operate ID | Account number and password |
Example：" ip=0.0.0.0；Id=test1；Pwd=111111；" AT instruction be:
AT+POC=01000069703d302e302e302e303b69643d74657374313b707 7643d3131313
131313b00；
Wherein 69703d302e302e302e303b69643d74657374313b7077643d31313131 31313b00
For " ip=0.0.0.0；Id=test1；Pwd=111111；" 16 scale codings.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 0x01 | As a result | 3rd operation ID |
Example：+POC:01000000.
3. user terminal instructs the parameter for obtaining the application in POC cluster communication modules, the parameter of acquisition by the first AT
Including IP address and account.Instruction format is as follows：
| 02 | First operation ID |
Example：AT+POC=020000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 02 | As a result | 3rd operation ID | Content of parameter |
Example：
+POC:0200000069703d302e302e302e303b69643d74657374313b00；
Wherein 69703d302e302e302e303b69643d74657374313b00 is " ip=0.0.0.0；Id=
test1；" 16 scale codings.
4. user terminal instructs the application in the POC cluster communication modules for making to have already turned on to log in by the first AT.Instruction
Form is as follows：
| 03 | First operation ID |
Example：AT+POC=030000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 03 | As a result | 3rd operation ID |
Example：+POC:03000000.
5. user terminal instructs the application in the POC cluster communication modules that can make to have logged on to nullify by the first AT.
Instruction format is as follows：
| 04 | First operation ID |
Example：AT+POC=040000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 04 | As a result | 3rd operation ID |
Example：+POC:04000000.
6. user terminal logs in the application stopping in the POC cluster communication modules logged in by the first AT instructions.
Instruction format is as follows：
| 05 | Operate ID |
Example：AT+POC=050000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows
| 05 | As a result | 3rd operation ID |
Example：+POC:05000000.
7. user terminal instructs the application Modify password in the POC cluster communication modules for making to have logged on by the first AT.
The data format of Old Password and new password is：Old Password+' 0 '+new password+' 0 '.Instruction format is as follows：
| 06 | First operation ID | Old Password and new password |
Example：AT+POC=0600003131313131310032323232323200；
Wherein 31313131313100 be 111,111 16 scale codings, and 32323232323200 be 222,222 16 systems
Coding.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 06 | As a result | 3rd operation ID |
Example：+POC:06000000.
8. user terminal instructs one prison of application increase in the POC cluster communication modules for making to have logged on by the first AT
Listen group.Parameter is group ID, and length is 4 bytes, is network byte order.Instruction format is as follows：
| 07 | First operation ID | Group ID |
Example：AT+POC=07000000000001；
Wherein 00000001 is group ID, and group ID is the unsigned int of 4 bytes.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 07 | As a result | 3rd operation ID |
Example：+POC:07000000.
The instruction format of the result of applicative notifications monitoring group operation in POC cluster communication modules is as follows：
| 88 | Monitor sign | Group ID |
Monitor sign：1 is increase monitoring group, and 0 is cancellation monitoring group.
Group ID：It is network byte order for 4 bytes.
Example:+POC:880100000001；Monitoring group is represented, group ID is 00000001；
9. user terminal instructs the application in the POC cluster communication modules for making to have logged on to cancel a prison by the first AT
Listen group.Parameter is group ID, and length is 4 bytes, is network byte order.Instruction format is as follows：
| 08 | First operation ID | Group ID |
Example：AT+POC=08000000000001；
Wherein 00000001 is group ID, and group ID is the unsigned int of 4 bytes.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 08 | As a result | 3rd operation ID |
Example：+POC:08000000.
10. user terminal instructs the application in the OC cluster communication modules for making to have logged on to enter a group by the first AT
In.Parameter is group ID, and length is 4 bytes, is network byte order.Instruction format is as follows：
| 09 | First operation ID | Group ID |
Example：AT+POC=09000000000001；
Wherein 00000001 is group ID, and group ID is the unsigned int of 4 bytes.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 09 | As a result | 3rd operation ID |
Example：+POC:09000000；
Application in POC cluster communication modules, which enters after composition work(, notifies that the instruction format of user terminal is as follows：
| 86 | Group name | Group ID | Group name |
Group ID：The ID of the group of entrance, is 4 bytes, is network byte order, is 0xFFFFFFFF when leaving group.
Group name (optional)：Enter enrolled name in an account book word, be UNICODE codings, be sky when leaving group.
Example：+POC:860000000001146f3a79c47e0000；
Represent that user enters group, group ID is 00000001, and group name is：" demonstration group ".
11. user terminal instructs the application individual calling one in the POC cluster communication modules for making to have logged on by the first AT
User.Parameter is ID, and length is 4 bytes, is network byte order.Instruction format is as follows：
| 0A | First operation ID | ID |
Example:：AT+POC=0A000000000001；
Wherein 00000001 is ID, and ID is the unsigned int of 4 bytes.
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 0A | As a result | 3rd operation ID |
Example：+POC:0A000000.
12. user terminal makes the application in the POC cluster communication modules having logged on start speech by the first AT instructions.
Instruction format is as follows：
| 0B | First operation ID |
Example：AT+POC=0B0000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 0B | As a result | 3rd operation ID |
Example：+POC:0B000000.
13. user terminal makes the application in the POC cluster communication modules having logged on wind up a speech by the first AT instructions.
Instruction format is as follows：
| 0C | First operation ID |
Example：AT+POC=0C0000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
| 0C | As a result | 3rd operation ID |
Example：+POC:0C000000.
14. user terminal makes the application in the POC cluster communication modules having logged on return to group information by instruction.Instruction
Form is as follows：
| 0D | First operation ID |
Example：AT+POC=0D0000；
The instruction format for the 3rd AT instructions that application in POC cluster communication modules is returned is as follows：
The number of group accounts for two bytes, is network-order.
| 0D | As a result | 3rd operation ID | The number of group |
Example：+POC:0D0000000002；
Wherein the number of 0002 expression group is 2.
The instruction format that application in POC cluster communication modules returns to group information is as follows：
| 80 | Group mark | 3rd operation ID | Group information |
First bit of group mark organize for this whether monitored mark, organize second bit identified organized for this whether be
Interim group mark.Group information form is as follows, and group index distinguishes 2 bytes with membership, is network byte order, and group ID is 4
Individual byte, is network byte order.
| Group index | Group ID | Membership | Group name (UNICODE) |
Example：+POC:8001001300010000000200034b6dd58bc47e0000；
01 binary system is 00000001, represents that this group is monitored；0001 represents that this group is first group；0002 represents this
The id of group is 2；0003 represents that this group has 3 user members；4b6dd58bc47e0000 represents that the name of this group is " test group ".
15. user terminal instructs the application in the POC cluster communication modules for making to have logged on to return to composition by the first AT
Member's information, parameter is that group ID length is 4 bytes, is network byte order.Instruction format is as follows：
| 0E | First operation ID | Group ID |
Example：AT+POC=0E000000000001；
Wherein 00000001 is group ID, and group ID is the unsigned int of 4 bytes.
The instruction format that application in POC cluster communication modules returns to group information is as follows：
Group membership's number accounts for two bytes, for net byte network order.
| 0E | As a result | 3rd operation ID | Group membership's number |
Example：+POC:0E0000000002；
Wherein the number of the Member Users of 0002 expression group is 2.
The instruction format that application in POC cluster communication modules returns to group membership's information is as follows：
| 81 | Member condition | 3rd operation ID | Information about firms |
Member condition：1 is offline, 2 online (not in this group), and 3 in this group (online).
Group message format is as follows, and member's index is 2 bytes, is network byte order；Member id is 4 bytes, for net
Network byte order.
| Member indexes | Member id | Member name (UNICODE) |
Example：+POC:810200140001000000024b6dd58b287537620000；
02 represents that this member condition is online；0001 represents that this member is first user；0002 represents the ID of this member
For 2；
4b6dd58b287537620000 represents that the name of this member is " test user ".
16. user terminal is combined with TTS functions and can realized not by the first AT instruction simulation button operations, button operation
Simply and easily talk back equipment with interface display.Button is defined as follows：
| 10 | First operation ID | Key |
Example:
AT+POC=10000000//start speech, presses POC keys
AT+POC=10000001//wind up a speech, unclamps POC keys
AT+POC=10000002//function key, acoustically lower key is to change a group key for switching
The key of AT+POC=10000003//acoustically, regulation sound is big, and choosing group function can be changed into by function key.
AT+POC=10000004//sound lower key, regulation sound is small, and choosing group function can be changed into by function key.
AT+POC=10000005//start to receive short message arrange parameter
AT+POC=10000006//end receives short message arrange parameter
Key in AT+POC=10000007//independent choosing group
AT+POC=10000008//independent choosing group lower key
Current group of AT+POC=10000009//report
17.POC the application in cluster communication module instructs the application in return POC cluster communication modules by the 2nd AT
Presence.Instruction format is as follows：
| 82 | Application state | ID | Extend information (UNICODE) |
Entered state：
0：Offline, ID is meaningless, extension information it is (optional) for it is offline the reason for；
1：In logging in, ID is meaningless, extension information (nothing)；
2：Success, ID are logged in, extension information is user name；
3：In cancellation, ID is meaningless, extension information (nothing)；
Example：+POC:8202000000104b6dd58b287537620000；Represent that user logs in success, user name
For：" test user ".
Application in 18.POC cluster communication modules returns to spoken user information by the 2nd AT instructions.Instruction format is such as
Under：
| 83 | Talk situation | Spoken user ID | Spoken user name |
Talk situation：
0：Expression oneself can not talk；
1：Expression oneself can interrupt the speech of teller, can carry out intrusion speech；
Spoken user ID：It is network byte order for 4 bytes；
Spoken user name：Spoken user name encodes for UNICODE；
Example：+POC:8300000000104b6dd58b287537620000；Represent that ID starts for 0010 user
Speech, and oneself can not intrusion its speech.
Application in 19.POC cluster communication modules instructs the prompt message for returning to application by the 2nd AT.Instruction format is such as
Under：
| 84 | Prompt message |
Prompt message：Encoded for UNICODE.
Example：+POC:84007c54eb533159258d0000；Represent the prompt message of " call failure " occur.
Application in 20.POC cluster communication modules updates subscriber group information by the 2nd AT instruction notifications.Instruction format is such as
Under：
| 85 | Type |
Type：0 is the information updating of group, and 1 is the information updating of member.
Example：+POC:8500；Represent that group information is changed, it is necessary to update.
Application in 21.POC cluster communication modules passes through the 2nd AT instruction notification user name information.Instruction format is such as
Under：
| 87 | User name |
User name：Encoded for UNICODE, be sky when leaving group.
Example：+POC:8700287537620d54575b0000；Represent that user name is changed to：" user name ".
Application in 22.POC cluster communication modules passes through this instruction notification authority information.Instruction format is as follows：
| 89 | Authority |
Authority：For 4 bytes.Authority definition is as follows：
Example：+POC:890000000001；Represent that the authority of user is revised as 00000001.
Application in 23.POC cluster communication modules receives information by this instruction notification.Instruction format is as follows：
| 8B | State |
State is a byte；1 represents that exploitation is played, and 0 expression broadcasting terminates.
Example：+POC:8B0001 represents that broadcasting starts ,+POC:8B0000 represents that broadcasting terminates.
Claims (3)
1. a kind of method of use AT instructions control POC cluster communication modules, it is characterised in that：
Step 1: user terminal transmit a request to POC cluster communication modules：User terminal arrives POC by sending the first AT instructions
Cluster communication module, POC cluster communication modules are responded；
Step 2: POC cluster communication modules send the notification to user terminal：When the state of POC cluster communication modules changes
When, POC cluster communications module notifies user terminal by sending the 2nd AT instructions；
In the step one, the response that POC cluster communications module is carried out is asynchronous response, i.e., when POC cluster communication modules are received
After the instructions of the first AT with session identification that user terminal is sent, POC cluster communications module returns to one by the 3rd AT instructions
The receipt that has been received by the first AT instructions and handle article is represented to user terminal, then again by the step 2 by execution
As a result user terminal is returned to by the 2nd AT instructions；Or in the step one, the response that POC cluster communications module is carried out is
Sync response, i.e., after POC cluster communication modules receive the instructions of the first AT with session identification of user terminal transmission, POC
The result of execution is returned to user terminal by cluster communication module by the 3rd AT instructions immediately；The 3rd AT instructions are by responding
Request, result, the 3rd operation ID and the 3rd extension content composition；The respond request is defined as POC cluster communications module to
One AT instructs the operation of the request after being responded, and length accounts for a byte；The result is POC cluster communication modules to user
The response results of terminal request, long fill accounts for a byte, and 0 represents inerrancy, and other values are wrong；It is described 3rd operation ID be
User terminal sends ID specified when asking to POC cluster communications module, and length accounts for two bytes, the 3rd extension content
The result performed for POC cluster communications module；The 2nd AT instructions are by notifying request, the extensions of code and second content to constitute；
Described to notify request to be defined as the instruction that POC cluster communications module is given notice to user terminal, length accounts for a byte；It is described
Code is the parameter of content of announcement；The second extension content is the content notified.
2. the method for control POC cluster communication modules is instructed using AT as claimed in claim 1, it is characterised in that：Described
One AT instructions are made up of operation requests, the first operation ID and the first extension content；The operation requests are defined as user terminal institute
The operation of request, length accounts for a byte；The first operation ID is specified by user terminal, and length accounts for two bytes；Described
One extends content to need some subsidiary parameters in operation requests.
3. the method for control POC cluster communication modules is instructed using AT as claimed in claim 1, it is characterised in that：Described
One AT instruction tapes have the session identification for identifying this request.
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| CN201410301754.0A CN104038905B (en) | 2014-06-27 | 2014-06-27 | A kind of method of use AT instructions control POC cluster communication modules |
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| CN201410301754.0A CN104038905B (en) | 2014-06-27 | 2014-06-27 | A kind of method of use AT instructions control POC cluster communication modules |
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| CN106998507A (en) * | 2016-01-26 | 2017-08-01 | 石家庄市善理通益科技有限公司 | The intercommunication means of communication and device |
| CN111866766A (en) * | 2020-07-20 | 2020-10-30 | 石家庄市善理通益科技有限公司 | Method and device for realizing function module interaction through AT instruction |
| CN113438610B (en) * | 2021-08-27 | 2021-12-14 | 深圳市晨讯物联科技有限公司 | Method and communication system for controlling POC communication module by AT instruction |
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| US20040198425A1 (en) * | 2002-10-01 | 2004-10-07 | Mellone Charles M. | Establishing half-duplex audio link as battery saving means |
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| CN103517217A (en) * | 2012-06-29 | 2014-01-15 | 中兴通讯股份有限公司 | Method and corresponding terminal for carrying out service control over trunking terminal |
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| US20040198425A1 (en) * | 2002-10-01 | 2004-10-07 | Mellone Charles M. | Establishing half-duplex audio link as battery saving means |
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