KR20120074271A - Customer service system based on wireless personal area network - Google Patents

Abstract

PURPOSE: A client service system based on a wireless personal area communication network is provided to enable a user to rapidly receive necessary services by using call phones or call bells for transmitting information. CONSTITUTION: A connecting apparatus(60) connects terminals. A head set(50) of a handset group receives the call phone signal or call bell signal of a client. The head set communicates with a call phone(30). A control apparatus(20) communicates with the call phone. The control apparatus transmits voice calls to the head set and other consoles and receives the voice calls from the head set and other consoles. A display apparatus(10) displays terminal numbers according to the call of the call phone and the call bell.

Description

Customer service system based on wireless personal area communication network

The present invention relates to a customer service system based on a wireless personal area network (WPAN), and more particularly, a customer visiting a large restaurant using a call phone or a call bell at a corresponding seat in a short distance. The present invention relates to a ZigBee communication customer service system that wirelessly communicates communication information to a counter display device and a control device or an employee's handset to receive necessary services quickly.

ZigBee technology is a low-speed, low-power, wireless personal area network standard (WPAN), which is one of the IEEE 802.15.4 standards supporting near field communication. In the dual PHY format, the frequency band uses 2.4 GHz (World Wide), 868 MHz (Europe), and 915 MHz (Americas), and operates within a frequency of about 75M. The modem method is Direct Sequence Spread Spectrum (DS-SS) and the data rate is 20 to 250 kbps.

In the field of wireless networking, such as home or office, 10? ZigBee is an information and communication technology for near field communication and ubiquitous computing of about 20m. Zigbee is simple in size, easy to design, low in development cost, and low in power while very stable in communication.

In the communication of Zigbee communication, Zigbee is usually composed of 254 auxiliary nodes centered on a manager who can perform all functions by themselves. To use the wireless Internet, you can use small, long-lasting devices, and configure data networks with simple operations.

On the other hand, businesses such as restaurants and taverns that are mainly engaged in interpersonal services, and install a call device for the convenience of customers and employees. For example, in a business, when customers order menus or other service requests, customers who place orders by calling bells for each table in the business to eliminate the inconvenience of calling the employees through fostering and gestures. It is intended to be used.

Since the caller in the conventional shop simply notifies the table number information, the employee has to approach the customer and receive the order directly. Therefore, when the customer orders the menu, the service procedure is inefficient between the customer and the employee.

In the call apparatus of the prior art, the call bell requires a power source for driving, and therefore, the call bell must have a separate means for supplying power. The call bell of each table uses an external power supply type and a built-in battery type according to the type of power supply means provided. In the case of the external power supply type, there are many restrictions due to the wiring and plug when installing the call bell, and in the case of the built-in battery, there is a hassle of having to replace the battery when the battery is exhausted.

In the conventional paging apparatus operated as described above, the terminal is configured so that the pager of the table and the transceiver of the employee through the repeater are wirelessly networked. At the end of the call during operation, the end signal is generated by the pager and the transceiver of the customer and then transmitted to the repeater. The state information of the repeater did not have a function of determining whether or not the repeater was operating.

Therefore, the repeater has only a simple function that can only output the information screen and ringtone of the pager. The operation when calling with two pagers in the customer table has a structure in which both pagers receive a call waiting signal, first output a waiting melody, and then a priority pager is connected.

In addition, multiple call successive receptions are networked such that only the last called transceiver can be answered in successive multiple calls. Here, the signal conversion function of the repeater did not have a signal conversion function of the repeater.

Looking at the method of transmitting voice when calling with pager 1 and 2, voice is transmitted in real time after the call channel is set up when waiting for call.In this case, when the two pagers are called, the relay role terminal has all relay and control functions. You can see that it is in charge of.

In addition, if the caller connects sequentially and consecutively at the 1st, 2nd, and 3rd pagers, the first connected pager switches to the call sleep mode 3 seconds after the call ends. Therefore, it is possible to continue the call when the call is made within 3 seconds only after the last connection, and the call to the previously connected pager becomes impossible.

Accordingly, the present inventors have devised a customer service system that introduces the concept of quickly and accurately communicating necessary information instead of minimizing power consumption by using Zigbee communication to complement the conventional calling function.

The present invention has been invented in view of the above-mentioned circumstances, and in various large-sized businesses, wireless communication between the call phone group and the call bell group of customers and the handset group of employees by ZigBee communication with a relay device, a monitor of a counter and a console is performed. The purpose of the present invention is to provide a customer service system based on a wireless personal area communication network that can communicate more quickly and accurately by increasing the efficiency of the service procedure between the customer and the employees who perform the request.

In order to achieve the above object, the present invention provides a table of customers ordering a connection device for short-range communication including a plurality of call phones in a call phone group and a plurality of call bells in a call bell group, and a display device and a control device in a counter or kitchen. In the wireless personal area communication network composed of a plurality of handsets of the service group of the handset of the serving employee, when the call signal is generated and transmitted from the first call phone or the second call phone, the call device receives the call signal, and each call phone Priority is given by setting up a call channel in the call, and the call channel setting and call data are transmitted to the display, control device and handset group. The call is terminated when there is no signal between the set time (1-10 seconds) or when the call termination signal comes from the handset; The connected device (relay device) receives the call termination signal, releases the channel setting for the call, checks if there is a call phone waiting for a call, and if there is a call phone waiting for a call, the operation is performed after the channel setting according to the priority. The second call phone stores the contents requested by the customer and immediately transmits the contents of the call and the information of the call phone to the display device, the control device, and the handset group.

As described above, according to the present invention, a customer who visits a large restaurant transmits predetermined information to a display device or a control device of a counter and a handset of an employee by short-range communication using a call phone or a call bell at a corresponding seat. There is an effect of increasing the efficiency of mutual service procedures by wireless networking to receive services quickly.

1 is a network diagram showing a customer service system according to an embodiment of the present invention;
2a to 2f is a detailed configuration diagram of each part for explaining the customer service system of the present invention,
3 is a flowchart illustrating an operation method when using two call phones in the customer service system of the present invention;
4 is a flowchart illustrating a call bell operation method in a customer service system according to the present invention;
5 is a flowchart illustrating the continuous reception of a plurality of call phones in the customer service system of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a network diagram illustrating a customer service system according to an exemplary embodiment of the present invention. The present invention is a customer service system based on a wireless personal area communication network, which means that a customer who visits a large restaurant has a short distance communication function using a call phone 30 or a call bell 40 at a corresponding seat 60. It is a customer service system for wireless networking so as to transfer predetermined information and quickly receive necessary services through the display device 10 and the control device 20 or the employee's handset 50 of the counter.

In the wireless personal area communication network, Zigbee communication is smoothly performed between the orderer, the counter and the employee in a large business. Customers ordering on the basis of the connection device 60 having a short-range wireless communication function are composed of a call phone group and a call bell group, and a counter is composed of a display device 10 and a control device 20, and a service employee. Consists of handset groups.

The call phone group is a Zigbee communication is performed to a plurality of call phone 1-call phone N (30), the call bell group is a Zigbee communication to a plurality of call bell 1-call ring N (40). In addition, Zigbee communication is performed not only in the handset group but also in the handset 1 --- handset N 50 by the connection device 60, the display device 10 and the control device 20.

The connection device 60 serves as a connection device for interconnecting each terminal, and is equipped with a 2.4 GHz Zigbee module and 311 MHz and 434 MHz receivers. The 311/434 MHz signal of the call bell is converted into a 2.4 GHz Zigbee signal and transmitted to the control device 20, the handset 50, and the display device 10.

The handset 50 of the handset group uses the 2.4 GHZ ZigBee method, which the employee carries and receives the customer's call phone and call bell signal, and can make voice calls with the call phone 30. Voice calls are possible with other employee's handset 50 and counter's control device 20, i.e. all calls, 1: 1 and designated calls.

In addition, the handset 50 has a function of setting a reception allowance range, a reception voice replay function, a rejection function of all calls, and a function of setting a reception allowance call number range. Call phone setting control is possible, and earphone is also available.

The control device 20, which includes a remote control as a control at the counter, is similar to the handset function and is a fixed transceiver, which can be installed in a counter and kitchen of a store and can be easily controlled by a remote control, using a 2.4 GHZ Zigbee method and an external speaker. You can receive a connection, a customer's call phone or ring tone.

The control device 20 is capable of making a voice call with the calling phone and making a voice call with the handset and the other console, i.e., the whole call, 1: 1 and the designated call. Also, it has the function of setting allowable range for receiving, receiving voice response function, reject all call function, and set allowable call number range.

In addition, it is possible to control the setting of the call phone, and can only receive a handset using a 1: 1 designated call method.

The display device 10 uses a 2.4 GHZ ZigBee method, and is a display device for displaying a terminal number when the call bell 30 and the call phone 40 are called, and there is no voice call function. Up to three numbers can be displayed at the same time (the oldest number is deleted when the call is called).

The call phone 30 in the call phone group is installed at the customer table, uses the 2.4 GHZ Zigbee method, and has a simple call function when the button is shortly inputted (less than 1 second). It is also possible. At the time of voice call, it has automatic response message (thank you) play function and uses 1.5V C type alkaline battery.

The call bell 40 in the call bell group uses the 311/434 MHz band and displays only the call number on the display device 10, the handset 50, and the control device 20 by a simple call function. There is no voice call function, and third party call bells using the same frequency band can be used. The connected device converts the 311 / 434MHz call bell signal into 2.4GHz Zigbee signal and sends the signal to the display device, control device and handset.

As described above, the present invention provides wireless networking between a call phone group and a call bell group of customers and a handset group of employees in ZigBee communication in a large-sized business by using a Zigbee communication, a display device of a counter and a control device. Increases the efficiency of service procedures among employees who perform, enabling faster and more accurate communication than ever before.

2A to 2F are detailed configuration diagrams of devices for explaining a customer service system of the present invention. The present invention uses ZigBee communication to minimize the power consumption and to communicate the necessary information with each other quickly and kindly. It is applied.

In the display device 10 provided in the counter or the kitchen, the sound output unit 11, the display unit 12, the CPU 13, the Zigbee module 14, and the power supply unit 15 are constituted. The display unit 12 displays the information of the call number in the 7-segment display of the number information coming from the corresponding call phone or the call bell.

The sound output unit 11 converts the information coming from the call phone or the call bell into a voice signal and outputs the voice signal. The 2.4 GHz ZigBee module 14 is a wireless module that receives data information from the call phone or the call bell via the connection device 60 and transmits it to the CPU 13, using a frequency of 2.4 to 2.48 GHz ISM band. It is a wireless module device that transmits and receives radio signals of OQPSK and MSK modulation.

The power supply unit 15 supplies power to the CPU, the display unit, the sound output unit, the 2.4 GHz Zigbee module, etc., and receives 3.6 V, 9 V, and 12 V power from the external adapter to supply the necessary power to the respective units. .

The CPU 13 is a central processing unit for controlling an RF (2.4 GHz) module and a memory (ROM / RAM), a core component of a terminal, and an 802.15.4 (Zigbee) protocol stack for short-range communication. Based on Protocol Stack, it is used to process applications that perform unique functions such as control devices. Basic functions include interrupt processing, system clock generation, timer operation, and serial communication.

In the controller 20, the audio input / output unit 21, the input unit 22, the CPU 23, the display unit 24, the Zigbee module 25, and the power supply unit 26 are constituted. The audio input / output unit 21 converts the information coming from the corresponding call phone or the call bell into a voice signal and outputs the voice signal, and receives the voice signal from the microphone and converts it into an electrical signal. The display unit 24 displays the number information of calling the number information coming from the call phone / bell on the seven-segment display device.

2.4GHz ZigBee module 25 is a wireless module that transfers the data received from the call phone or the call bell and the information received through the connection device 60 to the central processing unit (CPU), 2.4 GHz ~ 2.48 GHz It uses radio frequency of ISM band and transmits and receives OQPSK, MSK modulation radio signal.

The power supply unit 26 supplies power to the CPU, the display unit, the input unit, the audio input / output unit, the 2.4 GHz Zigbee module, etc., and receives 12V from an external adapter to generate 12V, 6V, 3.6V, and 3.3V power. Supply power to each part. The input unit 22 receives a user's input and processes a key or the like input for listening to a call or a recorded message.

The CPU 23 is a central processing unit for controlling external input / output devices (Key, LED, Audio), RF (2.4 GHz) module and memory (ROM / RAM), and the core parts of the terminal, 802.15 for short-range communication. .4 (ZigBee) Based on the protocol stack, it is used to process applications that perform unique functions such as control devices. Basic functions include interrupt processing, system clock generation, timer operation, and serial communication.

The call phone 30 in the customer table in the call phone group is composed of an audio input / output unit 31, a call input unit 32, a CPU 33, a Zigbee module 34 and a power supply unit 35. The audio input / output unit 31 outputs a voice signal input by the user for a call with the handset and the control device and a voice signal from the handset and the control device.

The 2.4 GHz Zigbee module 34 is a wireless module that transmits data and voice information to the connecting device 60 and receives a voice signal from the connecting device and transmits the received voice signal to the central processing unit (CPU). The ISM of 2.4 GHz to 2.48 GHz It is a wireless module device that uses the frequency of the band and transmits and receives radio signals of OQPSK and MSK modulation methods.

The call input unit 32 processes an input signal when the user wants to make a call and call with an employee who uses a control device and a handset to place an order in the call phone. The power supply unit 35 receives power from the battery and supplies power to the central control unit (CPU), the 2.4 GHz Zigbee module, the call input unit, and the audio input / output unit by generating 3V and 3.6V power.

The CPU 33 is a central processing unit for controlling external input / output devices (Key, LED, Audio), RF (2.4 GHz) module and memory (ROM / RAM), and is a core component of the terminal. 802.15. Based on the 4 (ZigBee) protocol stack, it is used to process applications that perform unique functions such as control devices. Basic functions include interrupt processing, system clock generation, timer operation and serial communication.

The 311/434 MHz call bell 40 in the call phone group is composed of an RF transmitter 41, a CPU 42, a power supply 43, and an input 44. The RF transmitter 41 of 311/434 MHz receives a signal from an input unit and loads information on a radio frequency signal of frequency 311/434 MHz by ASK modulation and transmits the information to a connection device. The input unit 44 processes the call signal received from the user and transmits the call signal to the CPU.

The CPU (central processing unit: 42) controls an input signal and a 311/434 MHz RF transmitter from a user. The power supply unit 43 receives power from the battery and supplies power to the 311/43 4 MHz RF transmitter, the CPU, and the input unit.

In the connection device 60, the 311/434 MHz call bell receivers 61 and 62, the CPU 63, the power supply unit 64, and the Zigbee module 65 are configured. The 311/434 MHz call bell receivers 61 and 62 transmit the received information data received from two kinds of 311/434 MHz call bells to the central processing unit (CPU) by receiving a radio signal of the ASK modulation method.

The power supply unit 64 is a device for supplying power to a 311/434 MHz call bell receiver, a central control unit (CPU), a 2.4 GHz Zigbee module, etc., and receives 6V from an external adapter to produce 6V and 3.6V power supplies. Supply power to the device. The 2.4GHz Zigbee module 65 transmits and receives the call data and voice signals from the call phone / call bell, the handset, and the control device and relays them to each device. The radio frequency is 2.4GHz to 2.48GHz ISM band. Transmit and receive radio signals of OQPSK and MSK modulation using radio frequencies of.

The CPU 63 is a central processing unit for controlling the RF (2.4GHz / 311MHz / 434MHz) module and memory (ROM / RAM), and is an essential part of the terminal and an 802.15.4 (ZigBee) protocol stack for near field communication. Essentially used to process applications that perform unique functions, such as control devices. Basic functions include interrupt processing, system clock generation, timer operation and serial communication.

The handset 50 in the employee group is composed of an audio input / output unit 51, an input unit 52, a CPU 53, a display unit 54, a Zigbee module 55, and a power supply unit 56. The audio input / output unit 51 converts information coming from a call phone, a control device, and other handsets into a voice signal, and outputs the voice signal.

The display unit 54 displays the number information of calling the number information coming from the call phone / call bell on the seven-segment display device. The 2.4 GHz Zigbee module 55 is a wireless module that receives data information and voice information from a call phone / bell and another handset through the connection device 60 and transmits the received information to the central processing unit (CPU). The 2.4 GHz to 2.48 GHz The radio frequency of the ISM band is used to transmit and receive radio signals of OQPSK and MSK modulation.

The power supply unit 56 is a device for supplying power to the CPU, display unit, input unit, audio input / output unit, 2.4GHz Zigbee module, etc., and receives power from an external battery to generate 3V and 1.9V power to power the devices of the respective units. To supply. The input unit 52 responds when a call or a call signal comes from a call phone or another handset or a control device, and processes a signal such as a key input for listening to a call or a recorded message.

The CPU 53 is a central processing unit for controlling external input / output devices (Key, LED, Audio), RF (2.4GHz) module and memory (ROM / RAM), and is a core component of the terminal. 802.15. Based on the 4 (ZigBee) protocol stack, it is essential for processing applications that perform unique functions such as control devices. Basic functions include interrupt processing, system clock generation, timer operation, and serial communication.

3 is a flowchart illustrating an operation when two call phones are used in the customer service system of the present invention. When two call phones are called, the operation method is that the higher priority call phones / call bells are connected directly without waiting.

When two call phones are called, the voice transmission method stores the voice first when waiting for a call and then transmits the stored voice when the call is started. In the case of two call phones, a relay role terminal is connected to all relay and control functions.

When the call signal is generated and transmitted from the first call phone or the second call phone, the connection device receives the call signal, sets a channel for each call phone, and transmits a priority assignment and call waiting signal.

The first call phone or the second call phone receives a call waiting signal and waits for a call, and sets a call channel according to priority in the connection device. The first call phone starts a call, generates and transmits a call termination signal, and ends. After receiving the channel setting for the call in the second call phone, the call is started and ended.

At this time, the connecting device receives the call termination signal, releases the channel setting for the call, and checks whether there is a call waiting phone. If there is a call phone waiting for a call, an operation after setting a channel for call according to priority is performed.

The first call phone or the second call phone of the present invention checks whether the connection device is available and generates and transmits a call signal. The connection device receives the call signal and transmits the call priority signal and the call waiting signal.

The first call phone or the second call phone receives a call channel according to the call phone priority from the connection device. Then, upon receiving the channel setting for the call, the contents of the call are sent and the call is started, and after 3 seconds, the idle state ends. If you do not receive the channel setting, receive the call waiting signal and enter and save the call details.

In the connecting device, the idle state elapses for 3 seconds, the channel setting for the call is released, and the presence of the call phone is confirmed during the call. If there is a call phone, the call resume signal is generated and transmitted, so that the first call phone or the second call phone checks the call resume signal and, if there is a call, moves to the aforementioned channel setting operation for the call.

The connecting device generates and transmits a call resume signal and then moves to a call channel setting operation according to the call phone priority.

4 is a flowchart illustrating a call bell operation method in the customer service system of the present invention. At two types of 311/434 MHz call bells in customer tables, employee handsets, counter controls or indicators are networked via ZigBee communications.

When a call signal is generated and transmitted by the caller by the operation of the customer, the connection device receives the call signal and converts the received signal. The connection device transmits the converted signal to a handset, a control device or a display device. The handset, the control device and the display device display the call ring number, or the handset or the control device outputs a voice.

5 is a flowchart illustrating the continuous reception of a plurality of call phones in the customer service system of the present invention. When a call is made continuously in a plurality of call phones, the control device and the handset can answer all called terminals within a set time after being called.

In the case of serial and consecutive call connection in 1, 2, and 3 call phones, all call phones remain in active mode for 60 seconds after the call is terminated, and the time can be set. You can make a call at any time with the calling phone which is finished within 60 seconds after the call.

The call required terminal selection function has been added, and after the call is terminated, the call sleep mode is switched to minimize the current consumption.

Although the technical concept of the customer service system based on the wireless personal area communication network of the present invention has been described based on the exemplary drawings, this is illustrative of the best embodiments of the present invention, which limits the claims of the present invention. It is not.

It will be apparent to those skilled in the art that various modifications and imitations can be made without departing from the scope of the technical idea of the present invention.

10: display device
20: controller
30: call phone
40: call bell
50: handset
60: connecting device

Claims (1)

The customer's table with a short-range communication connection consists of a number of call phones in the call phone group and a number of call bells in the call phone group, a display and a control in the counter or kitchen, and a handset group of serving employees. In wireless personal area network composed of multiple handsets,
Generating and transmitting a call signal from the first call phone or the second call phone, receiving a call signal from the connection device, and setting a channel for a call to each call phone to transmit a priority signal;
The first call phone or the second call phone receives the priority call channel signal, and the call phone corresponding to the priority sets the call channel, and the next call phone stores the call contents of the ordering customer and receives the call channel assignment. Wait until until the channel set for the call according to the priority in the connection device, the first call phone is initiated the call, the call termination signal generated and transmitted and terminated, the second call phone is stored after receiving the channel setting for the call Send and terminate the order contents and call of;
The connecting device receives the call termination signal, releases the channel setting for the call, checks whether there is a call waiting phone, and if there is a call waiting phone, the operation is performed after setting the channel for the call according to priority. Customer service system based on personal area communication network.

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