摘要:
The invention relates generally to the field of motorized garage door openers. In particular, the invention relates to wireless safety sensors for garage door openers and garage door opener with a wireless safety sensor. The wireless safety sensor has a wireless communication link with a main control unit of the garage door opener. The wireless safety sensor also has an internal wireless link, i.e., a detection beam link, between a master unit and a slave unit. The wireless safety sensor periodically verifies that the wireless communication link has good signal quality and maintains the quality of the wireless communication link.
摘要:
The invention provides a low current consumption control switch device and method related thereto. The control switch device includes a switch control component, a microprocessor, a wireless signal receiver for receiving control signal and a DC power supply. The DC power supply draws an AC current from the AC power supply to convert the AC current to a DC output to power the wireless signal receiver, the microprocessor and the switch control component. The switch control component has a control input for receiving control instructions to control current supply from the AC power supply to the load. The microprocessor is operatively connected to the control input of the switch control component for providing said control instructions to alter switching state of the switch control component. The control signal comprises a preamble and a message portion. The wireless signal receiver is configured to alternate between at least two current consumption modes and to remain in a higher current consumption mode of the at least two current consumption modes upon detection of the preamble.
摘要:
The invention provides a low current consumption control switch device and method related thereto. The control switch device includes a switch control component, a microprocessor, a wireless signal receiver for receiving control signal and a DC power supply. The DC power supply draws an AC current from the AC power supply to convert the AC current to a DC output to power the wireless signal receiver, the microprocessor and the switch control component. The switch control component has a control input for receiving control instructions to control current supply from the AC power supply to the load. The microprocessor is operatively connected to the control input of the switch control component for providing said control instructions to alter switching state of the switch control component. The control signal comprises a preamble and a message portion. The wireless signal receiver is configured to alternate between at least two current consumption modes and to remain in a higher current consumption mode of the at least two current consumption modes upon detection of the preamble.
摘要:
The invention provides a remote control device with password functions. Control function buttons can be used for sending control signals and for password entry. The remote control device is configured such that a user can enable and disable a password mode. When the password mode is enabled, the remote control is configured to require a password being entered using one or more control function buttons before a control signal will be transmitted in response to a control function being pressed or disabling the password mode. A user can also invoke a password programming function to enter, change or erase a password using one or more control function buttons.
摘要:
The invention provides a remote control device with password functions. Control function buttons can be used for sending control signals and for password entry. The remote control device is configured such that a user can enable and disable a password mode. When the password mode is enabled, the remote control is configured to require a password being entered using one or more control function buttons before a control signal will be transmitted in response to a control function being pressed or disabling the password mode. A user can also invoke a password programming function to enter, change or erase a password using one or more control function buttons.