CN100444603C - A Method for Realizing Group Call Function of Telephone - Google Patents

Abstract

The present invention relates to a method for realizing automatic continuous dialing under the management of a micro-controller for groups of telephones that need to be dialed frequently to complete the function of telephone group calls. It is completed by hardware and software. The software system includes a main program, a group storage program, Group call program and call record query program; the hardware system includes telephone interface, microcontroller, non-volatile memory, display unit, keyboard, numbering circuit and call circuit. Whether it is a menu command, after displaying the command list and storing the information according to the judgment result, the group call program unit realizes the group call and records the call, and finally the call record query program judges the call result and determines to return to repeat operation according to the result; access to normal Used in telephone lines, the dialing speed is fast, time-saving, high-efficiency, and records can be displayed, which can be used for collective management occasions to make group calls.

Description

A Method for Realizing Group Call Function of Telephone

Technical field:

The present invention relates to a method for continuous automatic dialing of group calls, and furthermore, it is a method for realizing automatic continuous dialing or group continuous calling under the management of a micro-controller for groups of telephones that need to be frequently dialed, that is, a method for realizing The method of the group call function of the telephone.

technical background:

Managers of enterprises and institutions sometimes need to communicate with members of certain groups by phone. For example, a company solicits opinions from customers scattered in various places, or a unit sends notices to employees who are not on duty. It is necessary to confirm whether each person has received the notice and whether they can participate in the activity , in this case you need to call each member individually. During the call process, you need to look up the phone number of each member first, and then dial the phone number of each member in turn. Some calls cannot be connected and you need to call again when you change the number. The number of customers may reach hundreds to thousands, and the call process is very troublesome.

Some mobile phones can record the phone numbers of personnel in groups, but when dialing the number of a member of a certain group, after the call is hung up, the group will exit the group and return to the upper floor. To call the next member of the group, it is necessary to re-enter the group , to search for the next member again, and cannot automatically dial the phone numbers of the group members continuously, which is not convenient enough for the situation where the phone numbers of a group of members need to be dialed continuously.

Invention content:

The purpose of the present invention, namely the technical problem to be solved, is to provide a method for continuously and automatically dialing a group of members, referred to as a group call, for occasions where one or several groups of members need to be dialed frequently. In order to relieve the trouble of checking numbers one by one and dialing one by one, reducing errors and improving work efficiency.

The object of the present invention is realized by the cooperation of the hardware system and the software system program, wherein the software system includes a main program unit, a group storage program unit, a group call program unit and a call record query program unit; the hardware system includes a telephone interface, a microcontroller, a non-volatile Memory, display unit, keyboard, number sending circuit and call circuit, first judge whether there is a button action during the operation of the main program, and the main program judges whether the user's button is a menu command (MENV) key, if not, then enter the state of directly dialing a phone; If it is then enter the menu command state and after the information is stored, the group call program unit realizes the group call and carries out the call record, and finally judges the call result by the call record query program unit and determines to return to repeat operation according to the result; the main program judges whether the user presses the button It is the menu command key, if not, it will enter the state of direct dialing.

When the group call function of the present invention is realized by the joint operation of software and hardware systems, its hardware system includes:

Telephone interface: access the telephone line;

Microcontroller MCU: control the realization process of the group call;

Non-volatile memory: connected to the MCU, used to store names, phone numbers and other information of various personnel in groups;

Display unit LCD: connected to MCU, used to display menu commands, personnel names, phone numbers and other information;

Keyboard: connected to MCU, there are 16 keys in 4X4, including number keys 0~9; * key, used to scroll up and move the cursor to the left; # key, used to scroll down and move the cursor to the right; OK key, used to confirm Selected item; C key, realize the corresponding function according to the occasion, (1) In the input state, clear the last input, (2) The command state is to exit the current state, return to the previous layer, long press the C key to return to the standby state, (3) ) View record status is delete record, long press C key to delete the same record of the current group, such as "complete call" record; MENU key, used to enter the menu command state and scroll down; R key, redial;

Sending circuit: It is composed of IC with sending function and its peripheral circuit, connected between MCU and telephone interface, converts the data sent by MCU into DTMF signal and sends it to the telephone interface;

Call circuit: connect to the telephone interface to complete functions such as voice signal amplification and call.

The MCU software system with group call function of the present invention includes a main program, a group storage program, a group call program and a call record query program. The function realized by designing the main program is to first judge whether the user’s key is a MENU (menu command) key, if not, then enter the state of direct dialing; if it is, then enter the state of menu command, and the user selects “information storage” and “group call” , "Call Record Query" and other commands can be executed by calling corresponding programs. In the menu command state, press the number keys 0~9 to execute some special functions instead of dialing.

To realize the group call function, it is first necessary to store the names and phone numbers of the callers in groups, such as "customer group" and "employee group". This function is implemented by the group storage program in this design, select "information storage" in the menu command, call the group storage program, and create a new "group". The method of programming is to give each group a storage area for storing pointers, store each person's name and phone number in an array, and store the array pointer into the storage area of the corresponding group. The Chinese information input uses the self-developed Chinese pinyin input method based on the above-mentioned number keyboard. The information input process is similar to the T9 pinyin input method in mobile phones, and other Chinese input methods can also be used.

The functions realized by the group call program are as follows: the user selects the "group call" command from the menu command, that is, after the group call program is executed, the user selects the group to be called from the display on the display unit, and the LCD screen displays the names of the members of the group and the default For the phone number, the user presses the confirmation key to realize automatic dialing; if the member who does not need to call can press the # key to skip; if the call fails, the user can choose to press the R key to redial, or press and hold the R key to choose to dial other numbers of the member. Or make a call record for future reference; the call record can choose "completed call" record, "unfinished call" record according to whether the call purpose is achieved, and you can also choose whether to write down the postscript; after the user selects the "call record query" command, the call is executed After recording the query procedure, the user selects the group to be queried from the group list of the display unit, and then chooses to view the "completed call" or "unfinished call" record; if the user chooses to view the "unfinished call" record, it will display "unfinished call" The list of names in , you can choose whether to view the postscript and whether to call them. The steps for viewing the "Completed Call" log are similar.

Whenever you want to exit a state, press the C key.

Managers can use the "group call" function to make calls to improve work efficiency. For example, the unit often calls cadres and employees for meetings. Since the members are relatively fixed, names and phone numbers can be classified and stored as "cadres group" and "employees group". , when you need to send a phone call, select "Group Call" and the corresponding group, and then you can automatically dial all the members of the group. According to the records of "Completed Call" and "Unfinished Call", you can query and deal with unfinished matters. Another example is that an enterprise needs to call back its product customers. The number of customers for each product can reach several hundred to several thousand. Finding the phone number of each customer and then dialing each customer's phone number in turn will be very troublesome. At any time, the customer's name and phone number can be stored in the electronic phone book as refrigerator customer groups, washing machine customer groups, and television customer groups. Using the "group call" function to make calls can greatly save time and improve work efficiency. The method of the present invention can also be applied in modified mobile phones.

Description of drawings:

Fig. 1 is a block diagram of hardware principle design for completing the group call function in the present invention.

Fig. 2 is the working flow diagram of the microcontroller for completing the group call function in the present invention.

Fig. 3 is a working flow chart of the group storage for completing the group call function in the present invention.

Fig. 4 is the working flow chart of automatic dialing for completing the group call function in the present invention.

Fig. 5 is a flow chart of the group call operation for completing the group call function in the present invention.

Fig. 6 is a flow chart of the call record query for completing the group call function in the present invention.

Fig. 7 is a schematic diagram of the structure principle of the hardware circuit for completing the group call function in the present invention.

Detailed ways:

The present invention realizes that group call function is realized by the combined operation of software and hardware systems, and the circuit principle that hardware realizes group call function is completed by the implementation circuit shown in accompanying drawing 1, comprises: telephone interface 1, microcontroller 2, nonvolatile memory 3, Display unit 4, keyboard 5, number sending circuit 6 and communication circuit 7, wherein the composition and function of each unit circuit are realized according to conventional principles.

Telephone interface 1, the two lines A and B of the telephone input are connected to the lightning protection element VR1, and the bridge circuit composed of four diodes (such as 1N4004) is used for polarity conversion to provide power and signal paths. The signal from the hook switch is sent to the interrupt input INT1 of the MCU through the voltage dividing resistors R6 and R7 to detect the hook off-hook signal.

Microcontroller (MCU) 2 controls the entire "group call" implementation process; there are many types of MCUs that can be used, and this example uses AT89S52.

The non-volatile memory 3 is used to store names, phone numbers and other information of various personnel in groups. This example selects 24C64, uses P2.1 and P2.2 ports of AT89S52 to simulate the I2C bus, and connects with 24C64.

The display unit (LCD), in this example, selects Okla 128X64 dot-matrix LCD, which is connected to the MCU with a serial port, and is used to display menu commands, personnel names, phone numbers and other information.

The keyboard 5 is used for making calls and selecting commands. The numbers and letters on the keyboard are arranged according to the standard telephone keyboard. It is connected to the AT89S52P1 port. There are 16 keys in 4X4, including the number keys 0~9; the * key is used for turning up and the cursor moves left; Turn and move the cursor to the right; OK key, used to confirm the selected item; C key, to realize the corresponding function according to the occasion, (1) In the input state, it is to clear the last input, (2) In the command state, it is to exit the current state and return to the previous one Layer, long press C key to return to standby mode, (3) View record status is delete record, long press C key to delete similar records of the current group, such as "complete call" record. MENU key, used to display command menu and scroll down; R key, redial.

Sending circuit 6 is made up of dedicated IC and its peripheral circuits. This example selects MT8888, which is connected between the MCU and the telephone interface, and converts the data sent by the MCU into DTMF signals and sends them to the telephone interface;

The communication circuit 7 is connected to the telephone interface to complete functions such as voice signal amplification and communication.

After the circuit units and their components are connected according to the electrical principle, they can be assembled into an integrated device to realize the function of telephone group calling. The model and parameters of each component can be selected according to conventional technology.

The MCU software system design of the group call function of the present invention is shown in accompanying drawing 2, adopts C51 language to write, comprises main program, group storage program, group call program, call record query program. The function realized by the main program design is to first judge whether the user key is a MENU (menu command) key, if not, enter the state of direct dialing; if it is, enter the state of menu command, and the user selects "information storage" and "group call" , "Call Record Query" and other commands can be executed by calling corresponding programs. In the menu command state, press the number keys 0~9 to execute some special functions instead of dialing.

To realize the "group call" function, it is first necessary to store the caller's name and phone number in groups, such as "customer group" and "employee group". This function is realized by the group storage program, and the design of the group storage program flow is shown in Figure 3. The method of group storage programming is to give each group a storage area for storing pointers, store each person's name and phone number in an array, and store the array pointer into the storage area of the corresponding group. The Chinese information input uses the Chinese pinyin input method based on the above-mentioned number keyboard that can be switched on and off automatically. The information input process is similar to the T9 pinyin input method in the mobile phone, and other Chinese input methods can also be used.

The flow design of the group call program is shown in Figure 4, and the functions are as follows: the user selects the "group call" command from the command list, that is, executes the group call program and enters the "group call" state. After the group to be called, let the LCD screen display the name and default phone number of the first member of the group, and the user presses the OK button to run the automatic dialing program to automatically dial the call. The flow design of the automatic dialing program is shown in Figure 5. After the user finishes talking and hangs up, the group call program will automatically display the name and default phone number of the second member of the group, and wait for the user to press the OK button to dial. In case of a member who does not need to talk, short press the # key to skip, and the group call program will display the name of the next member and the default phone number for the user to call. Repeat the above steps to automatically dial the last member of the group continuously. If the call fails, the user can choose to press the R key to redial, or press and hold the R key to choose to call another number of the member, or make a call record for future reference.

The call record is implemented in the automatic dialing program. After making a call, the user can choose whether to make a call record or not. If you don’t record the call, you can hang up directly. If you make a record, you can choose what kind of record to make according to whether the purpose of the call is reached. To make a record of "complete call", you can press the "6" key before hanging up. To make an "unfinished call" record, you can press the "4" button, and the name, phone number and time of the caller can be written into the corresponding call record. You can also choose whether to write down the postscript, and press the 0 button A postscript can be entered.

The design of call record query program and display record program is shown in Figure 6. After the user selects the "call record query" command from the command list, select the group to be queried from the group list, and then choose to view the "completed call" or "unfinished call" record . If you choose to view the "unfinished call" record, a list of names in the "unfinished call" record will be displayed, and you can choose whether to view the postscript or call them. The steps for viewing the "Completed Call" log are similar.

Exit state design: short press C key to exit the current state and return to the previous layer; long press C key to return to standby state.

Claims (2)

1. A method for realizing the group call function of a telephone, which is completed by the cooperation of a hardware system and a software system program, wherein the software system includes a main program unit, a group storage program unit, a group call program unit and a call record query program unit; the hardware system includes a telephone Interface, micro-controller, non-volatile memory, display unit, keyboard, signaling circuit and communication circuit, it is characterized in that whether there is a button action is judged in the operation of the main program first, and the main program judges whether the user button is a menu command key, if not , it will enter the state of direct dialing; if it is, it will enter the state of menu commands, and the user selects the "information storage", "group call" and "call record query" commands to call the corresponding programs to execute; the user selects "group call" from the menu command "command, that is, after executing the group call program, the user selects the group to be called from the display of the display unit, and the LCD screen displays the names and default phone numbers of the members of the group in turn, and the user presses the confirmation key to realize automatic dialing; Members can press the # key to skip; if the call fails, the user can choose to press the redial key to redial, or press and hold the redial key to choose to dial other numbers of the member, or make a call record for future reference; the call record can be changed according to whether the call purpose is achieved Select the "Completed Call" record, "Unfinished Call" record, and you can also choose whether to write down the postscript; after the user selects the "Call Record Query" command, that is, after executing the call record query program, the user selects the desired message from the group list of the display unit. The query group, and then choose to view the "completed call" or "unfinished call" records; Call up. 2. The method according to claim 1, characterized in that the realization process of the group call is controlled by the microcontroller; the non-volatile memory is connected to the microcontroller to complete grouping and store various information; the display unit completes Display menu command information; the keyboard completes the manual input of various control information; the sending circuit converts the data sent by the microcontroller into a dual-tone multi-frequency signal and sends it to the telephone interface; the communication circuit is connected to the telephone interface to complete the voice signal amplification and call realization.

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