WO2016187727A1

WO2016187727A1 - Electronic key for carbon dioxide laser

Info

Publication number: WO2016187727A1
Application number: PCT/CN2015/000344
Authority: WO
Inventors: 徐海军; 刘本洋
Original assignee: 北京热刺激光技术有限责任公司
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2016-12-01
Also published as: CN107710526A

Abstract

An electronic key for a carbon dioxide laser. The electronic key comprises a battery, a power management module of the battery, an LCD display screen, a sensor module, a microprocessor unit, and a communication port. The battery and the power management module of the battery are in charge of supplying power for all modules in the electronic key; the LCD display screen is configured to display a date code; the sensor module is configured to sense whether the electronic key is separated from a laser or not; the sensor module may generate, according to a connection status between the sensor module and the carbon dioxide laser, a corresponding status signal, and send same to a microprocessor; the communication port is configured to implement communication between the microprocessor unit and an external module; and the microprocessor unit receives the status signal, and drives the LCD display screen to display the corresponding date code.

Description

An electronic key for a carbon dioxide laser

Technical field

The invention relates to the field of optoelectronic technology, and in particular to the field of carbon dioxide lasers.

Background technique

With the wide application of CO2 lasers, deepening of global economic trade, and increasing production costs, CO2 laser tube manufacturers and customers have put forward higher requirements for after-sales service of CO2 lasers. It is required to effectively control the after-sale time of each CO 2 laser tube.

The existing CO2 laser tube does not have a corresponding after-sales electronic key. The warranty start date can only be remembered from the factory time. After the fixed warranty time, it is the warranty deadline. After the warranty deadline, the CO2 laser tube cannot be sold after-sales warranty. This form of warranty does not meet the customer's needs because the machine tool builder and the middleman need inventory during the warranty period and cannot be installed and used immediately, and the inventory time is often as long as several months. Another reason is that the transit time and customs clearance time of multinational sales is relatively long. Due to the existence of these times, there is no guarantee that the initial use time of each CO2 laser tube will be precisely controlled. The warranty time can only be calculated by multi-party caliber. This method is inaccurate and the high moral hazard has a great impact on the manufacturer. This problem directly affects the operation of manufacturers, machine tool manufacturers and end customers.

Existing CO2 lasers do not have a means to record their time of use, and manufacturers cannot accurately record the initial usage time of each CO2 laser tube, so that the after-sales expiration date of each CO2 laser tube cannot be calculated.

Summary of the invention

In view of the problems and deficiencies of the prior art described above, the present invention provides an electronic key for a carbon dioxide laser, which records the first use time of the carbon dioxide laser, and encrypts the initial use date into a corresponding The password is displayed. Can be used for CO2 laser after-sales warranty service

An electronic key for a carbon dioxide laser according to the present invention is characterized in that: the carbon dioxide laser electronic key comprises a battery and a power management module thereof, an LCD display screen, a sensor module, a microprocessor unit, and a communication port The battery and its power management module are responsible for powering each module in the electronic key. The LCD display is used to display the date password. The sensor module is used to sense whether the electronic key is separated from the laser. The sensor module will be based on the CO2 laser. The connection status generates a corresponding status signal and is transmitted to the microprocessor. The communication port is used to communicate between the microprocessor unit and the external module. The microprocessor unit receives the status signal and drives the LCD display to display the corresponding date and password.

Compared with the prior art, the invention has the beneficial effects of realizing the recording of the first use time of the carbon dioxide laser and encrypting the initial use date into a corresponding password display. Can be used for carbon dioxide laser after-sales warranty service, the device has high reliability and confidentiality.

BRIEF DESCRIPTION OF THE DRAWINGS:

1 is a schematic diagram showing the structure of an electronic key according to the present invention;

2 is a schematic view of a carbon dioxide laser of the present invention;

3 is a schematic view showing the assembly of a sensor module and a laser of the present invention;

4 is a schematic view of a contact surface of a sensor module and a laser of the present invention;

Figure 5 is a schematic view of the back of the electronic key of the present invention

detailed description:

The invention will be further described in conjunction with the specific embodiments and the accompanying drawings, but should not be construed as limiting the scope of the invention.

The carbon dioxide laser electronic key includes the battery and its power management module, LCD display), sensor module, microprocessor unit, and communication port. The battery and its power management module are responsible for powering each module in the electronic key. As shown in Figure 5, the LCD display is used to display the date password, and the sensor module is used to sense whether the electronic key is separated from the laser. The sensor module will According to it with a carbon dioxide laser The connection status generates a corresponding status signal and is transmitted to the microprocessor. The communication port is used to communicate between the microprocessor unit and the external module. The microprocessor unit receives the status signal and drives the LCD display to display the corresponding date and password. The sensor module may be an optical sensor, a switch type sensor or the like. The microprocessor unit also contains internal data storage, timers, peripheral circuits, and the like.

The working principle of the carbon dioxide laser electronic key is to first set the working date of the electronic key, encrypt the date and store it in the internal data storage area of the microprocessor, and set the timer to one cycle. Install the electronic key to the light exit of the factory-made CO2 laser and activate the electronic key. After the key is started, after the timer works for one day, the microprocessor automatically reads the date of the next day and encrypts it to generate a password. The microprocessor then drives the LCD display through the driver module to display the password. If the electronic key is not removed from the laser, the microprocessor will continue to work until the last day. After the working date is completed, the internal data will be cleared and a specific code will be displayed, indicating that the laser is not being used within the maximum time allowed. The artificially specified warranty start date is calculated from the date the laser was purchased or some other specific date.

When the customer first uses a carbon dioxide laser, the carbon dioxide laser must be separated from the carbon dioxide laser outlet by the electronic key installed in the carbon dioxide laser outlet (as shown in Figure 2), otherwise the electronic key will be burned. No after-sales warranty. When the electronic key is removed from the laser, the sensor will generate a corresponding signal. The microprocessor will freeze the date on the same day according to the signal condition, and display the date generation password. If the electronic key is in working time, the carbon dioxide will be displayed. The password generated by the laser start date is displayed all the time and the other data is cleared.

After-sales phase: Users can use the company's after-sales software for after-sales service based on different passwords generated by the electronic key.

The specific implementation manner is: first, set the number of working days of the electronic key to be M, then generate M n-bit passwords, and each password is not repeated. The M n-bit passwords are downloaded to the internal data storage area in the microprocessor through the communication port. The timer is set to one cycle per day, and the microprocessor updates the password in the order of the timer. The electronic key always displays the password for the date in the corresponding state within M days.

When the electronic key is downloaded, the assembly is automatically detected. As shown in Figure 3, when the electronic key is assembled with the CO2 laser, the sensor module of the electronic key generates a signal to the microprocessor that the microprocessor will no longer accept the assembly signal. The electronic key then updates the password every day from the first password until M days are completed. If the electronic key is separated from the CO2 laser within M days (that is, when the user first uses the laser), the sensor module will generate a working signal to the microprocessor when it is separated. After the microprocessor confirms that the signal is correct, the password of the day will be X (for example, password X is the Nth of M) records and keeps displaying until M day is over, and other passwords are all cleared after determining that the work signal is correct.

Then we can calculate the number of days that the CO2 laser will go through the first time from the factory to the customer for N days (the password of the electronic key is X), because the M n-digit passwords of each CO2 laser are different, the customer can Accurate and accurate after-sales service can be carried out based on the password generated by the electronic key and the number of the CO2 laser.

As shown in Figure 3, after the electronic key is assembled to the light-emitting end of the carbon dioxide laser, the contact surface of the electronic key sensor module is connected to the light-emitting end of the laser, and the sensor generates a signal (which may be a pulse signal according to the electrical signal and the optical signal after the contact). And interrupt the microprocessor to make a state determination. As shown in FIG. 4, the sensor module includes sensing contacts K1 to Kn, and the sensor can generate a signal according to the distance relationship between the contacts K1 and Kn and the light emitting end of the laser. After receiving the signal, the microprocessor analyzes and encrypts the signal, and then generates the signal. The corresponding n-digit password.

Claims

An electronic key for a carbon dioxide laser, characterized in that: the carbon dioxide laser electronic key comprises a battery and a power management module thereof, an LCD display screen, a sensor module, a microprocessor unit, and a communication port. The battery and its power management module are responsible for powering each module in the electronic key. The LCD display is used to display the date password. The sensor module is used to sense whether the electronic key is separated from the laser. The sensor module will be based on it and the carbon dioxide laser. The connection status generates a corresponding status signal and is transmitted to the microprocessor. The communication port is used to communicate between the microprocessor unit and the external module. The microprocessor unit receives the status signal and drives the LCD display to display the corresponding date and password.
The electronic key for a carbon dioxide laser according to claim 1, wherein the sensor module is an optical sensor or a switch type sensor.
The electronic key for a carbon dioxide laser according to claim 1, wherein said microprocessor unit further comprises an internal data storage area, a timer, and a peripheral circuit.
The electronic key for a carbon dioxide laser according to claim 1, wherein: the working date of the electronic key is set, the date is encrypted and stored in an internal data storage area of the microprocessor, and the timer is set to one day. In one cycle, the electronic key is installed to the light exit of the factory-made carbon dioxide laser, and the electronic key is activated.
The electronic key for a carbon dioxide laser according to claim 4, wherein after the key is started, after the timer is operated for one day, the microprocessor automatically reads the date of the next day and encrypts and generates a password, and then The microprocessor drives the LCD display through the driver module to display the password. If the electronic key is not removed from the laser, the microprocessor will work until the last day. After the working date is completed, the internal data will be cleared and the specific code will be displayed. .
An electronic key for a carbon dioxide laser according to any one of claims 1 to 5, characterized in that, when the electronic key is removed from the laser, the sensor generates a corresponding signal, and the microprocessor will date according to the signal condition. The freeze is displayed on the same day, and the date generation password is displayed. If the electronic key is in working time, the password generated by the start date of the CO2 laser is displayed continuously, and other data is cleared.
The electronic key for a carbon dioxide laser according to claim 1, wherein after the electronic key is assembled to the light-emitting end of the carbon dioxide laser, the contact surface of the sensor module is connected to the light-emitting end of the laser, and the electrical signal and the optical signal according to the contact are used. The sensor generates a signal and interrupts the microprocessor to make a state determination
The electronic key for a carbon dioxide laser according to claim 7, wherein the sensor module comprises at least one inductive contact.