Pros and cons of learning remote control
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The “learning remote control†is a remote control that adds several control functions to the TV set-top box remote control for turning on and off the TV, switching the signal source and adjusting the volume. This set of buttons needs to be set before use to "learn" several corresponding button functions on the home TV remote control.
The learning remote control can simplify the operation of digital TV to a certain extent. The market price is tens of yuan per tens of dollars, but in places where there is no random top box, less than 1% of users purchase learning remote controllers. What is the reason for the popularity of the learning remote control? The main reason is that it is not convenient enough to use.
Although the remote control buttons for controlling the television and controlling the set top box are concentrated on one learning type remote controller, these buttons are still in each tube and do not form an integrated remote control effect. Every time the remote control is turned on, the TV will not turn on. You need to press the button corresponding to the TV to turn on the TV, and the remote TV will be turned on. The default source of some TVs is not the set-top box, every time you turn on the TV. Users need to switch the signal source. On some TV sets, switching the signal source requires several steps. Even the learning remote control is no exception. It needs such operation. The learning type remote controller increases the number of buttons and the volume of the remote controller, and also increases the difficulty of button recognition and the operation error rate, which is easy for the consumer to have a bad experience. Although the price is relatively low, few people are interested.
Several basic functions such as turning the TV on and off, switching the signal source and adjusting the volume are necessary for watching digital TV. Other functions are rarely used or hardly used. Some TV sets can automatically enter the standby state after the signal source is interrupted, but the TV remote control still needs to use the TV remote control; most TV sets already have the signal source memory function, the operation of switching the signal source can be omitted; the set-top box can be used for each The volume of the TV channel is controlled separately, but when the overall volume is adjusted, the remote control of the TV is also used. If you can omit the operation of the above functions, you can leave the TV remote control when watching digital TV every day. Inland remote control TV
Let the set-top box remote control TV
In the past, people focused too much on the remote control, hoping to concentrate the control of several appliances on a remote control, and rarely consider the set-top box to remotely control the TV. The remote control can remotely control the TV. Why can't the set-top box? Because there is no infrared transmitter and related circuits on the set top box, there is no corresponding remote control function program. If the design of the set-top box is changed slightly on the basis of the existing hardware system, the function of transmitting the remote control signal is not difficult to implement. This is not a technical obstacle in the development of set-top boxes.
The key to the problem is not whether the set-top box can send the remote control signal, but whether it can omit the operation of switching the TV, switching the signal source, and adjusting the volume. If you can't omit it, you lose the value of the app and consumers won't accept it.
To let people omit the operation of switching the TV, switching the signal source, and adjusting the volume, the set-top box needs to follow the following five relationships when transmitting the remote control signal:
(1) Sending the TV remote control signal when the set top box is turned on;
(2) After sending the TV remote control signal, determine whether to send the TV to switch the video remote control signal or signal sequence according to the settings. If the video switching is not set, the set-top box skips the item when it runs;
(3) When the current channel volume of the set-top box is close to 0, if you continue to receive the volume-reduction remote control signal, you need to pause its own volume adjustment, and then send the TV to reduce the volume remote control signal;
(4) When the current channel volume of the set-top box has reached the maximum, if the volume-increasing remote control signal is continuously received, the television set volume-increasing remote control signal is sent;
(5) When the set-top box receives the remote standby signal, it first sends the TV standby remote control signal, and then the set-top box enters the standby state.
To solve the above problems, the following conditions are also required: 1. The remote control code of the TV set is stored in the set top box; 2. The transmission of the remote control code of the TV is associated with the "specific action" such as the set top box switch machine, and is controlled by the program of the set top box. When the set-top box is running to a certain state, the TV remote control code in the set-top box is sent out in time; 3. The television can receive the remote control signal sent by the set-top box to generate a response action.
Due to the precedent of learning remote control, there is no problem in storing the remote control code of the TV set in the set-top box; the establishment of the association and transmission of the remote control signal requires the program support of the set-top box; appropriately increasing the remote control transmit power or properly arranging the set-top box remote control transmitter and the TV remote control reception The relative position of the window allows for an effective remote control.
In order to realize these functions, it is also necessary to add corresponding modules in the application layer software of the set top box, so that the set top box can provide a humanized interactive interface for the end user, and guide the user to set the association between the remote control code of the television and the set top box according to his own needs. After the setting is completed, as long as the TV is in the standby state, the remote control code sent by the random set-top box will act in concert, and no separate operation is required.
The existing hardware architecture of the set-top box provides a good carrying environment for adding corresponding software modules, which is beneficial to reduce the cost of technology implementation, and the hardware cost of adding the infrared transmitting function on the set-top box can also be controlled within 1% of the overall cost of the set-top box.
By using a set-top box to remotely control the TV, the use value of the set-top box can be improved. It can be used for long-term use and convenient for users. Of course, users can choose whether to use or not use the linkage function on the set-top box according to their own conditions. As long as they are not set or do not make the settings take effect, you can continue to use other functions like the set-top box. Users have the flexibility to choose their own, new technologies are easily accepted, the pressure on the overall conversion of digital TV will be reduced, and the two-way, high-definition products will also increase some selling points.
summary
As early as 2005, domestic attempts to transplant and forward infrared remote control signals for home appliances have begun. After that, some enterprises have started research projects and achieved certain results, but in terms of implementation, if they can't make breakthroughs in providing convenience to consumers, they can only talk on paper. At present, the method proposed by the author is only a technical framework, which not only needs to be specially designed for different products, but also needs to be adjusted and improved according to the needs of the market.
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