A mobile call system and method for power grid dispatching

Abstract

This invention relates to the field of communication technology and discloses a mobile call system and method for power grid dispatching, comprising: a call control module and a dispatching core device interconnected, wherein the dispatching core device is also connected to a dispatching telephone and a mobile client; the call control module is used to obtain the user's mobile phone number and the dispatching telephone number, send call signaling to the dispatching core device, and adjust the calling number, called number, and media address in the call signaling according to the messages returned by the dispatching telephone and the mobile client; the dispatching core device is used to send a call message to the dispatching telephone and the mobile client according to the adjusted calling number, called number, and media address in the call signaling, thereby establishing a call between the dispatching telephone and the mobile client. Under the condition of one-way communication between dispatching and users, interoperability between the dispatching telephone and the mobile client is achieved.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and more specifically, to a mobile call system and method for power grid dispatching. Background Technology

[0002] The statements in this section are merely background information related to the present invention and do not necessarily constitute prior art.

[0003] The power grid dispatching and switching system undertakes power grid dispatching and command business. The network structure adopts a three-level hierarchical aggregation method, with the upper-level aggregation and switching center (station) connecting to the lower-level aggregation and switching center (station) or terminal exchange station switch. According to relevant standards, the dispatching and switching system is only connected to the administrative switching system and public network telephone, that is, dispatching telephones can make calls to administrative telephones and public network telephones, but public network telephones and administrative telephones cannot make calls to dispatching telephones. As the volume of power grid dispatching business continues to increase and the dispatching scenarios become more and more complex, the existing model can no longer meet the needs of power grid dispatching business.

[0004] The specific problems are analyzed as follows:

[0005] First, the dispatch telephone system lacks flexibility. Dispatch telephones are deployed in the dispatch halls of substations, regional dispatch centers, and other dispatch locations, and cannot be moved freely. When substation or power plant personnel leave the dispatch hall for other emergencies, they cannot use the dispatch telephones to contact the next higher-level dispatch unit.

[0006] Secondly, distribution network maintenance and substation inspection personnel lack means to contact the power grid dispatch center. When staff are engaged in distribution network maintenance or substation inspection work, they cannot directly contact the power grid dispatch center via telephone in case of an emergency, making it difficult for dispatchers to grasp the situation on site in a timely manner.

[0007] Third, there is a risk of missing power grid dispatch recordings in some scenarios. In emergency situations, distribution network maintenance and substation inspection personnel usually use mobile phones to contact the dispatch center. Once an accident occurs, some dispatch recordings will be missing, which will be detrimental to subsequent accident tracing and liability determination. Summary of the Invention

[0008] To address the aforementioned problems, this invention provides a mobile call system and method for power grid dispatching. This system transforms the signaling and media flow in scenarios where dispatching telephones and users communicate with each other into signaling and media flow in scenarios where communication is only one-way. Under the condition of one-way communication between dispatching and users, it achieves interoperability between dispatching telephones and mobile clients.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] The first aspect of the present invention provides a mobile call system for power grid dispatch, which includes a call control module and a dispatch core device interconnected with each other, the dispatch core device being connected to a dispatch telephone and a mobile client.

[0011] The call control module is used to obtain the user's mobile phone number and the dispatch phone number, send call signaling to the dispatch core device, and adjust the calling number, called number and media address in the call signaling according to the messages returned by the dispatch phone and the mobile client.

[0012] The dispatch core device is used to send call messages to the dispatch telephone and the mobile client based on the calling number, called number and media address in the adjusted call signaling, and to establish a call between the dispatch telephone and the mobile client.

[0013] Furthermore, the call control module is used to obtain the user's mobile phone number and the dispatch phone number, and send a first INVITE message to the dispatch core device, wherein the calling number and the called number in the first INVITE message are both the user's mobile phone number;

[0014] The scheduling core device is used to receive the first INVITE message and send the first call message to the mobile client corresponding to the user's mobile phone number via a relay.

[0015] The mobile client is used to return a 180 ringing message to the call control module through the scheduling core device after receiving the first call message, and to return a 200 OK message to the call control module through the scheduling core device after answering the call.

[0016] Furthermore, the call control module is also used to receive a 200ok message, play a ringback tone to the mobile client, send an Ack message, and simultaneously send a second INVITE message to the dispatch core device. The calling number in the second INVITE message is a four-digit fixed short number, and the called number is the called dispatch phone number.

[0017] The scheduling core device is also used to receive the second INVITE message and send the second call message to the called scheduling telephone number corresponding to the scheduling telephone number;

[0018] The called dispatch telephone is also used to ring after receiving the second call message, send a ringing message to the call control module through the dispatch switching core equipment, and return a 200ok message to the call control module after the call is answered.

[0019] Furthermore, the call control module is also used to send a third INVITE message to the dispatch core device after receiving the ringing message of the called dispatch call.

[0020] The scheduling core device is also used to receive a third INVITE message and send a third call message to the mobile client.

[0021] The mobile client is also used to receive a third call message and then return a 200 OK message to the call control module.

[0022] Furthermore, it also includes an authentication and authorization module for verifying user information and authorizing a token upon successful verification.

[0023] Furthermore, the authentication and authorization module is also used to match and verify the username and mobile phone number based on the token.

[0024] Furthermore, it also includes a load balancing module, which monitors the trunk traffic volume between the call control module and the scheduling core equipment, and distributes the next call to a trunk link with less traffic.

[0025] Furthermore, it also includes a call statistics module, which is used to collect call information after the call is established between the dispatch telephone and the mobile client, and to count the number of calls made by each dispatch unit within a specified time based on the call information.

[0026] Furthermore, it also includes an address book module, which is used to calculate the score of each dispatch unit based on the number of calls made by each dispatch unit, and to sort the dispatch units according to the score.

[0027] A second aspect of the present invention provides a mobile call method for power grid dispatching, comprising the following steps:

[0028] The call control module obtains the user's mobile phone number and the dispatch phone number, sends call signaling to the dispatch core device, and adjusts the calling number, called number, and media address in the call signaling according to the messages returned by the dispatch phone and the mobile client.

[0029] The dispatch core equipment sends a call message to the dispatch telephone and the mobile client based on the caller ID, called number, and media address in the adjusted call signaling, thus establishing a call between the dispatch telephone and the mobile client.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] This invention provides a mobile call system for power grid dispatching. By studying the call signaling flow, it transforms the signaling and media flow in scenarios where dispatching telephones and administrative telephones, as well as public network interconnection, into a single-communication scenario. Under the condition of single-communication between dispatching and administrative telephones, and public network, it achieves interoperability between dispatching telephones and mobile clients.

[0032] This invention provides a mobile call system for power grid dispatch, which is highly flexible in deployment and can be integrated into various unified operation and maintenance management platforms within the power grid system for unified management. It eliminates the need for users to install this application separately on their hardware terminals, effectively improving the user experience.

[0033] This invention provides a mobile call system for power grid dispatch, which effectively improves dispatch and command efficiency. Addressing the security regulations governing the single-communication connection between power grid dispatch telephones and the public network, it controls the signaling interaction process between public network mobile phones, dispatch telephones, and the power grid dispatch mobile call system, changing the media flow of the call. This transforms the scenario of a public network mobile phone dialing a dispatch telephone into a scenario of a dispatch telephone dialing a public network mobile phone. When personnel conducting line maintenance or substation inspections discover abnormalities, they can immediately notify the dispatcher via the dispatch telephone, greatly improving dispatch and command efficiency in relevant scenarios.

[0034] This invention provides a mobile call system for power grid dispatching, which is secure and reliable. It uses a single sign-on method for authorization and authentication. When entering the system, not only is the token verified, but the username and mobile phone number are also matched and verified. The user's identity is securely verified without having to repeatedly enter the username and password.

[0035] This invention provides a mobile call system for power grid dispatching, which features a personalized address book that provides a superior user experience. By collecting and analyzing the call volume of different users, the system automatically adjusts the order of departments in the address book based on the frequency of calls to a particular department and historical records. This allows users to quickly find the phone number of the department they wish to contact, effectively improving dialing efficiency. Attached Figure Description

[0036] The accompanying drawings, which constitute a part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute a limitation thereof.

[0037] Figure 1 This is a structural diagram of a power grid dispatch mobile call system according to Embodiment 1 of the present invention;

[0038] Figure 2 This is a flowchart illustrating the workflow of a power grid dispatch mobile call system according to Embodiment 1 of the present invention.

[0039] Figure 3 This is a flowchart of the power grid dispatch mobile call signaling negotiation process according to Embodiment 1 of the present invention;

[0040] Figure 4 This is a flowchart of a power grid dispatch mobile call single sign-on process according to Embodiment 1 of the present invention. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] It should be noted that the following detailed descriptions are exemplary and intended to provide further illustration of the invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0043] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0044] Unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0045] Example 1

[0046] The purpose of this first embodiment is to provide a mobile call system for power grid dispatching, enabling interoperability between dispatch telephones and mobile phone clients, such as... Figure 1 As shown, it includes: a unified operation and maintenance management client, a front-end display interface, a trunk connection module, a call control module, a call statistics module, an address book module, an authentication and authorization module, a database, a load balancing module, core dispatch and switching equipment, core administrative switching equipment, dispatch telephones, and mobile clients. The core dispatch and switching equipment includes softswitches, program-controlled switches, and IP multimedia systems. Call trunks (channel trunks or single-channel trunks) include SIP trunks and circuit trunks. Circuit trunks include Q signaling trunks and SS7 signaling trunks.

[0047] A unified operation and maintenance management client for integrating multiple systems, such as a mobile call system.

[0048] The front-end display interface shows the user's personalized address book and call records made through this system. Users can send call commands to the call control module by clicking on a dispatch number in the address book. Call record information includes the phone numbers of each dispatch unit, the name of the dispatch unit, and the sites under its jurisdiction.

[0049] The database is used to store information about each dispatching unit, including the name of the dispatching unit, the dispatching telephone number, and the names of the stations under the jurisdiction of the dispatching unit.

[0050] The trunking module is used to establish a trunking connection with the core dispatching and switching equipment for communication.

[0051] The call control module receives call instructions (including the user's mobile phone number and the dispatch phone number) from the front-end display module. It then sends these instructions to the user's mobile phone and the called dispatch phone via the dispatch switching core device, adjusting the message body content of the call signaling (including the first, second, and third INVITE messages) to establish a call between the user's mobile phone and the called dispatch phone. Specifically, the call control module obtains the user's mobile phone number and the dispatch phone number, sends call signaling to the dispatch core device, and adjusts the calling number, called number, and media address in the call signaling based on the messages returned by the dispatch phone and the mobile client. The dispatch core device, based on the adjusted calling number, called number, and media address in the call signaling, sends call messages to the dispatch phone and the mobile client, establishing a call between them.

[0052] The call statistics module is used to collect and statistically analyze call information made by users through this system after a call is established between the dispatch phone and the mobile client. Call information includes the called number, the name of the organization to which the called number belongs, the dialing time, and the call duration. The statistical analysis is used to count the number of calls made to each dispatch organization within the past hour. A dispatch organization contains several dispatch phone numbers.

[0053] The address book module is used to display the user's personalized address book, collect statistical analysis data from the call statistics module, score each department, sort the departments according to the scoring results, and set the user's personalized address book according to the order of the departments.

[0054] The authentication and authorization module is used to authenticate the dispatcher's identity, using single sign-on for authentication, and enabling integration with other business systems.

[0055] The load balancing module is used to monitor and schedule the call status of the interconnected trunks of the core switches in real time, and automatically adjust the trunk time slot occupied by the next call.

[0056] The dispatching and switching core equipment and the mobile client are connected to the operator network via the administrative switching core equipment. The administrative switching equipment is used to connect the dispatching and switching core equipment and the operator network, providing a communication link between the dispatching and switching equipment and the operator network.

[0057] like Figure 2 As shown, the workflow of a power grid dispatch mobile call system is as follows:

[0058] Step (1): The user logs into the unified operation and maintenance management platform and enters the dispatch telephone mobile call system.

[0059] Step (2): Click the dispatch phone number on the address book page to send a call request to the call control module.

[0060] Step (3): The call control module sends a call signaling message to the dispatch core device to establish a call with the user's mobile phone and the called dispatch phone respectively. Then, the user's mobile phone and the called dispatch phone are connected to establish a call between the user's mobile phone and the called dispatch phone.

[0061] Step (4): The load balancing module automatically allocates the trunk occupied by the next call.

[0062] Step (5): The call statistics module monitors the dispatch call information dialed by this system in real time, including the phone number, dispatch unit, dialing time, call duration, etc., and counts the number of calls dialed to each dispatch unit in the past hour.

[0063] Step (6): The address book module collects the number of calls from the dispatching unit as counted by the call statistics module, scores them, sorts each department according to the scoring results, and generates a personalized address book for the user.

[0064] Users log in to the unified operation and maintenance management platform and enter the dispatch telephone mobile call system. This includes:

[0065] Users log in to the unified operation and maintenance management platform and log in to the dispatch telephone mobile call system using single sign-on.

[0066] like Figure 4 As shown, logging into the dispatch telephone mobile call system using single sign-on includes:

[0067] Step (1): The user enters their account and password to log in to the unified operation and maintenance management platform client. The client obtains the device's IP address and MAC address, concatenates them with the user's account to obtain the user information, and sends it to the authentication and authorization module for verification.

[0068] Step (2): If the user information does not exist or is incorrect, redirect to the login page. If the user passes the verification, authorize the token.

[0069] Step (3): The user clicks on the dispatch telephone mobile calling system, enters the mobile phone number (the user's public network operator mobile phone number), and the dispatch telephone mobile calling system sends a verification request to the client.

[0070] Step (4): The client of the unified operation and maintenance management platform will send the token and scheduling number to the authentication and authorization module for verification.

[0071] Step (5): The authentication and authorization module first verifies the token, and then matches and verifies the username and the user's mobile phone number. If the verification is successful, the user can access the dispatch telephone mobile call system page; otherwise, the user is returned to the unified operation and maintenance management platform client.

[0072] The call control module sends call signaling to the dispatch core equipment to establish calls with both the user's mobile phone and the called dispatch phone. By controlling the media flow, it connects the user's mobile phone to the called dispatch phone, thus establishing the call between them. This includes:

[0073] like Figure 3 As shown, the method of controlling media flow to establish a call between a user's mobile phone and a called dispatch phone includes:

[0074] Step (1): The call control module sends a first INVITE message to the dispatch core device, wherein the calling and called numbers in the first INVITE message are the user's mobile phone numbers, and the media address is the address of the dispatch mobile call system (the address of the server where the call control module is located).

[0075] Step (2): The scheduling core device receives the first INVITE message and sends the first call message to the user's mobile phone through the relay connected to the operator.

[0076] Step (3): The user's mobile phone receives the first call message and returns a 180 ringing message to the call control module through the scheduling core device, marking the start of the user's mobile phone ringing.

[0077] Step (4): The user's mobile phone answers the call made by the call control module and returns a 200 OK message to the call control module through the scheduling core device.

[0078] Step (5): The call control module receives the 200ok message, plays the ringback tone to the user's mobile phone, sends the Ack message, and at the same time sends the second INVITE message to the dispatch core device. The calling number in the second INVITE message is a four-digit fixed short number, the called number is the called dispatch phone number, and the media address is the address of the dispatch core device.

[0079] Step (6): The scheduling core device receives the second INVITE message, sends the second call message to the called scheduling phone corresponding to the scheduling phone number, the called scheduling phone receives the second call message, then rings, and sends a 180 ringing message to the call control module through the scheduling switching core device.

[0080] Step (7): After receiving the ringing message from the called dispatch phone, the call control module sends a third INVITE message to the dispatch core device; the dispatch core device receives the third INVITE message and sends a third call message to the mobile client; the calling number in the third INVITE message is the called dispatch phone number, the called number is the user's mobile phone number, and the media address is the address of the dispatch core device; after the user's mobile phone receives the media address change message (i.e., after receiving the third call message), it returns 200OK.

[0081] Step (8): The called dispatch phone answers the call and returns a 200 OK message to the call control module through the dispatch core device, thereby establishing a call between the user's mobile phone and the called dispatch phone.

[0082] The load balancing module automatically allocates the trunk space used by the next call, including:

[0083] The load balancing module monitors the trunk traffic volume between the call control module and the scheduling and switching core equipment of this system in real time, and automatically distributes the next call to the trunk link with less traffic, thereby achieving call load balancing.

[0084] Preferably, the address book module collects the number of calls from the dispatching unit as counted by the call statistics module, scores them, sorts each department according to the scoring results, and generates a personalized address book for each user.

[0085] The address book module collects the number of calls from dispatching units as statistically analyzed by the call statistics module, scores them, sorts the departments according to the scoring results, and generates a personalized address book for each user. Its features include:

[0086] Step (1): The address book module collects the call volume data collected by the call statistics module in the past hour.

[0087] Step (2): Calculate the score of each department (scheduling unit) at the current time node, as shown in Formula 1.

[0088]

[0089] in, This represents the score of the j-th department at time point t, where N represents the number of departments and k represents the score of the j-th department. j Let i represent the call volume of the j-th department, and i and j represent the indexes of the departments.

[0090] Step (3): Calculate the current scores of each department, as shown in Formula 2.

[0091]

[0092] Step (4): Sort the departments according to their scores, and adjust the order of each department in the address book according to the sorting results to realize the personalized address book function.

[0093] Example 2

[0094] The purpose of this second embodiment is to provide a mobile call method for power grid dispatching, including the following steps:

[0095] The call control module obtains the user's mobile phone number and the dispatch phone number, sends call signaling to the dispatch core device, and adjusts the calling number, called number, and media address in the call signaling according to the messages returned by the dispatch phone and the mobile client.

[0096] The dispatch core equipment sends a call message to the dispatch telephone and the mobile client based on the caller ID, called number, and media address in the adjusted call signaling, thus establishing a call between the dispatch telephone and the mobile client.

[0097] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0098] While the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of the present invention are still within the scope of protection of the present invention.

Claims

1. A mobile call system for power grid dispatch, characterized in that: It includes an interconnected call control module and a dispatch core device, the dispatch core device of which is also connected to a dispatch telephone and a mobile client. The call control module is used to obtain the user's mobile phone number and the dispatch phone number, send call signaling to the dispatch core device, and adjust the calling number, called number and media address in the call signaling according to the messages returned by the dispatch phone and the mobile client. The call control module is used to obtain the user's mobile phone number and the dispatch phone number, and send a first INVITE message to the dispatch core device. The calling number and the called number in the first INVITE message are both the user's mobile phone number. It is also used to receive a 200 OK message, play a ringback tone to the mobile client, send an Ack message, and simultaneously send a second INVITE message to the dispatch core device. The calling number in the second INVITE message is a four-digit fixed short number, and the called number is the called dispatch phone number. It is also used to send a third INVITE message to the dispatch core device after receiving the ringing message of the called dispatch phone number. The dispatch core device is used to send call messages to the dispatch telephone and the mobile client based on the calling number, called number and media address in the adjusted call signaling, and to establish a call between the dispatch telephone and the mobile client.

2. The power grid dispatch mobile call system as described in claim 1, characterized in that: The scheduling core device is used to receive the first INVITE message and send the first call message to the mobile client corresponding to the user's mobile phone number via a relay. The mobile client is used to return a 180 ringing message to the call control module through the scheduling core device after receiving the first call message, and to return a 200 OK message to the call control module through the scheduling core device after answering the call.

3. The mobile call system for power grid dispatch as described in claim 2, characterized in that: The scheduling core device is also used to receive the second INVITE message and send the second call message to the called scheduling telephone number corresponding to the scheduling telephone number; The called dispatch telephone is also used to ring after receiving the second call message, send a ringing message to the call control module through the dispatch switching core equipment, and return a 200 OK message to the call control module after the call is answered.

4. A mobile call system for power grid dispatch as described in claim 3, characterized in that: The scheduling core device is also used to receive a third INVITE message and send a third call message to the mobile client. The mobile client is also used to return a 200 OK message to the call control module after receiving a third call message.

5. A mobile call system for power grid dispatch as described in claim 1, characterized in that: It also includes an authentication and authorization module, which is used to verify user information and authorize a token after successful verification.

6. A mobile call system for power grid dispatch as described in claim 5, characterized in that: The authentication and authorization module is also used to match and verify the username and mobile phone number based on the token.

7. A mobile call system for power grid dispatch as described in claim 1, characterized in that: It also includes a load balancing module, which monitors the trunk traffic volume between the call control module and the scheduling core equipment, and distributes the next call to a trunk link with less traffic.

8. A mobile call system for power grid dispatch as described in claim 1, characterized in that: It also includes a call statistics module, which is used to collect call information after the call is established between the dispatch telephone and the mobile client, and to count the number of calls made by each dispatch unit within a specified time based on the call information.

9. A mobile call system for power grid dispatch as described in claim 1, characterized in that: It also includes an address book module, which is used to calculate the score of each dispatch unit based on the number of calls made by each dispatch unit, and to sort the dispatch units according to the score.

10. A mobile call method for power grid dispatching, characterized in that: Includes the following steps: The call control module obtains the user's mobile phone number and the dispatch phone number, sends call signaling to the dispatch core device, and adjusts the calling number, called number, and media address in the call signaling according to the messages returned by the dispatch phone and the mobile client. The call control module is used to obtain the user's mobile phone number and the dispatch phone number, and send a first INVITE message to the dispatch core device. The calling number and the called number in the first INVITE message are both the user's mobile phone number. It is also used to receive a 200 OK message, play a ringback tone to the mobile client, send an Ack message, and simultaneously send a second INVITE message to the dispatch core device. The calling number in the second INVITE message is a four-digit fixed short number, and the called number is the called dispatch phone number. It is also used to send a third INVITE message to the dispatch core device after receiving the ringing message of the called dispatch phone number. The dispatch core equipment sends a call message to the dispatch telephone and the mobile client based on the caller ID, called number, and media address in the adjusted call signaling, thus establishing a call between the dispatch telephone and the mobile client.

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