CN1953370B - Method for modifying parameter value of embedded system by pushing set file into object - Google Patents

Abstract

A method for modifying parameter value of embedded system by Object Push setting file is used in embedded system without input keyboard, after transmitting electronic business card (vCard) from start end to embedded system by Object Push setting file (OPP), name field information in it is read by analysis module to change device name of embedded system.

Description

Method for Modifying Embedded System Parameter Values by Pushing Objects into Configuration Files

technical field

The present invention relates to a method for changing device parameter values, in particular to a method for transferring a business card file (vCard) using an Object Push Profile (OPP, Object Push Profile) to change parameter values of an embedded system without an input keyboard Methods.

Background technique

With the continuous evolution of technology, the exchange of information is even more important, especially to allow various devices to freely exchange data. The most common way is through the control line. However, if there are many such portable devices, It will become a bunch of various connection lines on the body, for example: the personal digital assistant has its connection line for data transmission with the computer, the mp3 player also has its own transmission line, and the mobile phone needs to synchronize the address book. It needs a transmission line of its own to connect with the computer. Although the data transmission port on the computer side has been unified into an IEEE1394 or USB interface, the connectors on the peripheral device may have various specifications, which makes it impossible to use only one transmission line. Transfer data to various peripheral devices.

Infrared can just solve this problem. If each peripheral device has an infrared connection device, as long as the infrared sensors between the two can detect each other, data transmission can be carried out, and there is no need to connect through a transmission line. However, this way There are still disadvantages; first, the detection range of infrared rays is limited, and two devices with infrared sensors cannot be connected if they cannot fall within the detection range of each other; second, the transmission range of infrared rays is only 2-3 meters. Moreover, there must be no barrier between the two infrared sensors; and the transmission speed of data through infrared is only 115kbps, which can only be used for small amount of data transmission.

Therefore, in 1998, five manufacturers jointly developed Bluetooth technical specifications, which were used in various digital IA home appliances, electronic consumer devices for people's livelihood, communication and automotive products. It is rare, and the output of Bluetooth chips is not much, so that it cannot be widely used. However, in recent years, various manufacturers have increased the number of products equipped with Bluetooth chips, and transmission through Bluetooth has gradually become popular.

Compared with infrared technology, bluetooth technology not only speeds up the transmission speed, but also two bluetooth devices can still transmit data even if there is an object in the middle, and the transmission distance can reach more than 10 meters. The most important thing is through bluetooth The transmission is no longer limited to within the detection range. Since the transmission of Bluetooth itself is non-directional, data transmission can be carried out within the effective distance of the sphere range of the Bluetooth device. Compared with infrared devices in use more convenient.

However, because the detection range of Bluetooth is non-directional, if you are in a crowded place, such as: a station during commuting hours, inside a MRT car, an exhibition venue or a department store on weekends and holidays, turn on Bluetooth to detect The detection often finds that there may be more than the same Bluetooth peripherals around, especially after the price of Bluetooth headsets has become more popular. Many users of Bluetooth mobile phones are more willing to use Bluetooth headsets to answer calls. All will use the built-in name of the manufacturer, but the name of the product is fixed, and embedded systems such as Bluetooth headsets and Bluetooth walkmans often do not have keyboards and other input devices that can be used to set the name. A computer or mobile phone is connected to it, and the default device name cannot be changed by executing a special modification program or by modifying the firmware. In this way, if the user detects multiple identical products at the same time, it is often impossible to know which one The device is the object you want to establish a connection with.

Another serious problem is that although the Bluetooth transmission is encrypted, if the user does not change the pairing password, it is usually the default pairing password set by the manufacturer when leaving the factory, and the pairing password is easy to guess. In this way, interested people can easily hack into the Bluetooth device and steal internal data, which shows the importance of changing the pairing password, but if the Bluetooth device itself does not have a keyboard input device, it is not easy to change the pairing password.

Contents of the invention

In view of the above problems, the main purpose of the present invention is to provide a method for modifying embedded system (embedded system) parameter values through object push profile (OPP, Object Push Profile), by receiving the The business card file (vCard) enables the embedded system without an input keyboard to change the name of the device, thereby enabling the embedded system to achieve the purpose of personalization.

Therefore, in order to achieve the above purpose, the present invention discloses a method for modifying embedded system parameter values through an object push setting file, which is applied to an initial terminal to modify the embedded system parameter value. The method includes the following steps: receiving an initial terminal A request to establish a transmission connection; through the transmission connection, obtain the name card file transmitted from the starting end in the form of an object push configuration file; retrieve multiple field data of the name card file content; and modify the field data according to each field data There are many corresponding parameter values stored in the embedded system. The starting terminal needs to enter a pairing password to confirm the pass before sending the business card file to change the parameter values. The business card file is also used to modify the embedded system. The pairing password of the system, the method includes the following steps: extracting a new pairing password field of the business card file; requiring the originating terminal to input the new pairing password for re-authentication; when the authentication fails, canceling the modification of the pairing password action; and when the authentication is successful, replace the pairing password with the new pairing password.

In order to achieve the above purpose, the present invention also discloses an embedded system for modifying system parameter values by pushing an object into a configuration file. connection, and obtain the name card file transmitted from the starting end through the transmission connection by means of an object push configuration file; a parsing module for retrieving multiple field data of the name card file content; a storage module for storing multiple parameter values of the embedded system; and a modifying module for modifying each parameter value corresponding to the embedded system according to the data in each field, wherein, the starting terminal needs to input a pairing password to confirm and pass the confirmation. Sending the business card file to change each parameter value, wherein the business card file is also used to modify the pairing password of the embedded system, the modification of the pairing password of the embedded system includes the following steps: retrieving a part of the business card file New pairing password field; require the initiator to input the new pairing password for re-authentication; when the authentication fails, cancel the action of modifying the pairing password; and when the authentication is successful, replace the pairing password with the new pairing password.

Regarding the characteristics and implementation of the present invention, the preferred embodiments are described in detail below in conjunction with the accompanying drawings.

Description of drawings

Figure 1a is a schematic diagram of an embodiment of the present invention;

Fig. 1b is a system architecture diagram of the present invention on the embedded system side;

Fig. 1c is a schematic diagram of the content of the business card file of the present invention;

Fig. 2 is the method flowchart of the present invention at the starting end;

Fig. 3 is a schematic diagram of the search results at the starting end of the present invention;

FIG. 4 is a schematic diagram of sending data between the target device and the target device by pushing the object into the configuration file at the starting end of the present invention;

Fig. 5 is a flow chart of the method for changing the name of the device at the receiving end according to the present invention;

Fig. 6 is a schematic diagram of display at the starting end after the name change of the receiving end is completed in the present invention; and

FIG. 7 is a flow chart of the method for changing the pairing password at the receiving end according to the present invention.

Description of reference symbols

1 - start

2- Receiver

10-Wireless transmission module

20-Analysis module

30-modify module

40-storage module

100-Embedded System

150-Business card file

153 - Contact name field

156-Contact phone field

300-Bluetooth mobile phone

310-Bluetooth computer

410-The default name when leaving the factory

610-Changed device name

1000-Bluetooth headset

2000-Bluetooth headset

3000-Bluetooth headset

Step 210 - Search for surrounding embedded systems with object push configuration files

Step 220—select an embedded device and request to establish a connection with it

Step 230 - Requiring the user to enter a pairing password for confirmation

Step 240 - determine whether the pairing password entered by the user is correct?

Step 250—select a card file and send it to the selected embedded system and execute the update of the embedded system parameter value

Step 260 - cancel the action of establishing a connection

Step 510 - Receive the connection request from the initiator and obtain the same frequency hopping sequence to establish the connection between the two

Step 520—Receive the business card file from the originating end by pushing the object into the configuration file

Step 530—analyze the content of the business card file and extract the contact data therein

Step 540 - Replace the factory default device name with the name of the contact person

Step 710 - receiving the business card file from the originating end

Step 720—analyze the content of the business card file and extract the pairing password field information therein

Step 730 - Requiring the user to enter the new pairing password at the initial terminal for reconfirmation

Step 740-judging whether the new pairing password input by the user at the initial terminal is correct?

Step 750 - replace the old pairing password with the new pairing password and store in the storage module

Step 760 - cancel the action of changing the pairing password

Detailed ways

The present invention discloses a method of modifying embedded system parameter values by pushing objects into configuration files. In the following detailed description of the invention, various specific details are described in order to provide a thorough description of the invention. It will occur to one skilled in the art, however, that the invention may be practiced without the use of these specific details, or that the invention may be practiced by utilizing alternative components or methods. In other instances, well-known methods, procedures, components, and circuits have not been described in particular detail so as not to unnecessarily obscure the present invention.

Please refer to "Fig. 1a" and "Fig. 1b". This is the system architecture diagram of the embedded system 100 for changing the name of the device with the name card file 150 of the present invention, at least including:

Wireless transmission module 10, for example like: bluetooth device (Bluetooth Module), infrared (IrDA, Infrared Data Association) device... and so on have the device that object pushes setting file (OPP, ObjectPush Profile), take bluetooth device as an example, A Bluetooth device can play the role of Master and Slave at the same time, or switch between the two. Generally speaking, the starting end 1 (the end that sends out the request) is the Master, and the receiving end 2 (the end that accepts the request) is the Slave. In this embodiment, the starting end 1 is the Bluetooth mobile phone 300 or the computer 310 with the Bluetooth device, and The receiver 2 is the Bluetooth headset 1000 , the Bluetooth headset 2000 and the Bluetooth headset 3000 . During operation, since the role that controls the entire Bluetooth network domain is Initiator 1, when two Bluetooth devices establish a connection, they will switch between these two roles. In a Bluetooth piconet, the frequency hopping sequence is determined by the initiator 1, and the receiver 2 must obey the frequency hopping sequence (FHS, Frequency Hopping Series) determined by the initiator 1. And a bluetooth device all has a bluetooth device address (BDA, Bluetooth DeviceAddress) and clock. The Bluetooth baseband controller (baseband controller) will calculate a frequency hopping sequence according to the address and clock of the Bluetooth device.

When a receiving terminal 2 establishes a connection with the starting terminal 1, the starting terminal 1 will notify the receiving terminal 2 of its own Bluetooth device address and clock, and the base frequency of the receiving terminal 2 will calculate the frequency hopping sequence of the starting terminal 1 and match its own hopping sequence. Frequency sequence comparison, calculate the displacement, in order to adjust its own frequency, and complete the synchronous action with the starting terminal 1. In addition, the originating end 1 also allocates time slots (timeslots) according to the needs of the receiving end 2 . Because the receiving end 2 can only transmit data to the starting end 1 within the time slot allocated by the starting end 1.

After the connection is established, files such as business card file (vCard) 150, calendar and itinerary file (vCalender) can be obtained by pushing the setting file through the object, and the parsing module 20 in the embedded system 100 of the receiving end 2 It is used to capture the received data; take the business card file 150 as an example, as shown in "Fig. at the beginning, and the subsequent "VCARD" is to record that this is a name card file 150; the next line is to represent the version of this name card file 150, and the next line is the contact person data, "NM:" This code represents the name of the contact person Field 153, in this embodiment, the name of the contact is "user earphone", and "NO:" represents the data of the contact's phone field 156 is "54321", the parsing module 20 can be based on each beginning The following field data is retrieved by the code, and each field data is recorded in the corresponding position of the storage module 40 .

The modification module 30 is then set according to the firmware of the embedded system 100, for example: the data of the name field 153 of the contact person can be replaced with the device name of the embedded system 100, and the phone field 156 data of the contact person can be replaced with the embedded The pairing password of the embedded system 100, when the modification is completed, the device name 610 after the change of the embedded system 100 seen by the starting terminal 1 is "user earphone" next time, and when it wants to establish a connection with the embedded system 100 , you need to enter the changed new pairing password to establish a connection.

The storage module 40 generally refers to the built-in memory in the embedded system 100, which is usually a non-volatile memory (NVRAM, Non-Volatile RAM). The system is used until there is no power, shutdown or due to battery replacement, resulting in no power to maintain data storage, and this non-volatile memory includes the following types: EEPROM (Electrically Erasable Programmable Read-Only Memory), Erasable Programmable Read-Only Memory (EPROM, Erasable Programmable Read-Only Memory), or Flash Memory (Flash Memory) such as: NAND Flash Memory (NAND Type Flash Memory), NOR Flash Memory (NorFlash, NOR Type Flash Memory).

Please refer to "Fig. 2", which is a flow chart of the method of the present invention at the starting end 1. Taking the computer 310 with a Bluetooth device as the starting end 1 as an example, at first, a bluetooth search program is started to drive the bluetooth device to Find devices with Bluetooth devices around (step 210), as shown in "Figure 3", which is a schematic diagram of the search results, in which there are three Bluetooth headsets 1000, 2000, and 3000 of the same model, because the Bluetooth headsets 1000, 2000, and 3000 There is no device with a keyboard to change the device name, so the searched devices are all displayed as the default name 410 "M Brand Headphones" at the factory, and it is impossible to know which Bluetooth headset is in your hand. The invention is used to solve this problem, so that the embedded system 100 without an input keyboard can easily modify the device name.

Please refer to "Figure 4". Assuming that the Bluetooth headset 1000 is the object we want to modify the device name, it is convenient to select the Bluetooth headset 1000 on the computer display screen. At this time, the Bluetooth headset 1000 icon will change color to indicate that it has been selected. Click twice on the icon to request to establish a connection (step 220), and then the Bluetooth headset 1000 will require the user to enter the pairing password on the Bluetooth computer 310 to perform the connection (step 230). The bluetooth headset 1000 receives the pairing password input by the user and starts to judge whether it is correct (step 240 )? If the user enters a wrong pairing password, the connection cannot be established (step 260); otherwise, a prompt for connection establishment will be displayed on the screen of the bluetooth computer 310, and the user can select a card file 150 and push it into the device. Start transmission in a fixed file mode, and then the device name of the Bluetooth headset 1000 can be updated through the business card file 150 (step 260).

Please refer to "Fig. 5", which is a flow chart of the method for changing the name of the device at the receiving end 2 of the present invention. Taking the Bluetooth headset 1000 as an example, after the Bluetooth computer 310 sends a connection request, it will send its own Bluetooth device address and clock Notify the Bluetooth headset 1000 that the base frequency of the Bluetooth headset 1000 will calculate the frequency hopping sequence of the Bluetooth computer 310, compare it with its own frequency hopping sequence, and calculate the displacement, so as to adjust its own frequency and complete the synchronization with the Bluetooth computer 310. Establish a connection between the two (step 510). In addition, the bluetooth computer 310 will also allocate time slots according to the needs of the bluetooth headset 1000, and transmit data to the bluetooth headset 1000 in the time slot allocated by the bluetooth computer 310, and then the user can select the object and push it into the setting file The business card file 150 is transmitted in a manner, and the bluetooth headset 1000 can receive the business card file 150 from the bluetooth computer 310 from the wireless transmission module 10 (step 520).

The parsing module 20 interprets the "VCARD" at the beginning and knows that this is the format of the business card file 150, and then extracts the data "user earphone" in the contact name field 153 (step 530); finally, as shown in "Figure 6", by The modification module 30 replaces the default name 410 "M brand earphone" when leaving the factory with the data "user earphone" in the name field 153 of the contact person according to the setting of the embedded system 100 firmware (step 540), so that , when the user searches for the peripheral Bluetooth device again next time, his Bluetooth headset 1000 will no longer only display the default name 410 when leaving the factory like other Bluetooth headsets of the same brand, but he can quickly find himself The bluetooth headset 1000.

Although changing the pairing password of the Bluetooth headset 1000 is similar to changing its device name, please refer to "Figure 7", which is the flow chart of the method for changing the pairing password in this method. From the business card file 150 sent by the computer 310 (step 710), the data in the contact phone field 156 is extracted by the parsing module 20 as "54321" (step 720), but in order to ensure that the user knows the changed pairing password, Therefore, at the Bluetooth computer 310 end, the user must be required to input the changed pairing password for confirmation (step 730), and after comparing the data in the contact phone field 156 with the pairing password input by the user, it is confirmed that it is correct (step 740). Then the contact person's telephone field 156 data "54321" can be replaced with the pairing password of the embedded system 100, and stored in the storage module 40 (step 750), otherwise, if the user needs to enter a new pairing password If it is wrong, cancel the action of changing the pairing password (step 760).

Although the present invention is disclosed above with the aforementioned preferred embodiments, it is not intended to limit the present invention. Any person familiar with the similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, The scope of patent protection of the present invention must be defined by the scope of patent application attached to this specification.

Claims (21)

1. A method for modifying an embedded system parameter value by pushing a setting file through an object, applied to an initial terminal to modify the embedded system parameter value, the method comprising the following steps: receiving a request from an originator to establish a transmission connection; Obtain the name card file transmitted from the starting end through the transmission connection in the form of an object push setting file; Extract multiple field data of the content of the business card file; and Modify the corresponding multiple parameter values stored in the embedded system according to the data in each field, Among them, the starting end needs to enter a pairing password to confirm the pass before sending the business card file to change the value of each parameter. Wherein, the business card file is also used to modify the pairing password of the embedded system, and the method includes the following steps: Retrieve a new pairing password field of the business card file; Requiring the initiator to enter the new pairing password for re-authentication; When the authentication fails, cancel the action of modifying the pairing password; and When the authentication is successful, the new pairing password is used to replace the pairing password. 2. The method for modifying parameter values of an embedded system through an object push configuration file as claimed in claim 1, wherein the starting end is a computer. 3. The method for modifying parameter values of an embedded system by pushing an object into a setting file as claimed in claim 1, wherein the starting end is a mobile phone. 4. The method for modifying parameter values of an embedded system through an object push configuration file as claimed in claim 1, wherein the transmission connection is an infrared transmission. 5. The method for modifying parameter values of an embedded system through an object push configuration file as claimed in claim 1, wherein the transmission connection is a Bluetooth transmission. 6. The method for modifying parameter values of an embedded system through an object push configuration file as claimed in claim 1, wherein each of the field data of the business card file includes a device name. 7. The method for modifying the parameter value of an embedded system through an object push configuration file as claimed in claim 6, wherein the device name can still be modified when the authentication fails. 8. The method for modifying parameter values of an embedded system through an object push configuration file as claimed in claim 1, wherein the embedded system is a bluetooth headset. 9. An embedded system for modifying system parameter values by pushing objects into setting files, the embedded system has: A wireless transmission module, used to receive a request from an originating end to establish a transmission connection, and obtain a business card file from the originating end through the transmission connection by means of an object push configuration file; A parsing module for retrieving multiple field data of the content of the business card file; A storage module, used for storing multiple parameter values of the embedded system; and a modification module, used to modify each parameter value corresponding to the embedded system according to the field data, Among them, the starting end needs to enter a pairing password to confirm the pass before sending the business card file to change the value of each parameter. Wherein, the business card file is also used to modify the pairing password of the embedded system, and the modification of the pairing password of the embedded system includes the following steps: Retrieve a new pairing password field of the business card file; Requiring the initiator to enter the new pairing password for re-authentication; When the authentication fails, cancel the action of modifying the pairing password; and When the authentication is successful, the new pairing password is used to replace the pairing password. 10. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 9, wherein the starting end is a computer. 11. The embedded system for modifying system parameter values by pushing an object into a setting file as claimed in claim 9, wherein the starting end is a mobile phone. 12. The embedded system for modifying system parameter values by pushing an object into a setting file as claimed in claim 9, wherein the wireless transmission module is an infrared transmission. 13. The embedded system for modifying system parameter values by pushing an object into a setting file as claimed in claim 9, wherein the wireless transmission module is a Bluetooth transmission. 14. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 9, wherein each field data of the business card file includes a device name. 15. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 9, wherein the storage module is a non-volatile memory. 16. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 15, wherein the non-volatile memory is an erasable read-only memory. 17. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 15, wherein the non-volatile memory is an electrically erasable read-only memory. 18. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 15, wherein the non-volatile memory is a flash memory. 19. The embedded system for modifying system parameter values by pushing an object into a setting file as claimed in claim 18, wherein the flash memory is a NOR flash memory. 20. The embedded system for modifying system parameter values by pushing an object into a setting file as claimed in claim 18, wherein the flash memory is a NAND flash memory. 21. The embedded system for modifying system parameter values by pushing an object into a configuration file as claimed in claim 9, wherein the embedded system is a bluetooth headset.

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