摘要:
One or more repeaters enable the conveyance of both asynchronous and synchronous transmissions. This can comprise receiving, via a first carrier, a transmission from a message source that is asynchronous with respect to a time slot partitioning of the communication protocol and then, when the asynchronous transmission is received during an asynchronous source transmission portion, buffering a corresponding message until a next available synchronous time slot opportunity during the asynchronous source transmission portion and then transmitting the message via the first carrier to at least attempt to forward the message.
摘要:
A pool of identifiers are individually used by corresponding particular ones of a repeaters. A communications protocol as used by the repeaters provides time slots to be used by these repeaters when making their transmissions. Each of the time slots is associated with individual corresponding ones of the identifiers, though the time slots are allocated unequally amongst the identifiers such that at least one of the identifiers has more time slots allocated to that identifier, over a given beacon cycle, than others of the identifiers.
摘要:
A barrier movement operator moves a barrier between open and closed positions. The operator receives a first request to move the barrier. The actual force required to move the barrier is measured. An obstruction to barrier movement is determined by comparing the measured actual force to a first predetermined force threshold. Responsive to the detection of an obstruction, the direction of travel of the barrier is reversed. The operation of the barrier movement operator is modified, by permitting the use of a higher force threshold in future measurements. A second request to move the barrier is received. The actual force required to move the barrier is measured a second time. An obstruction to barrier movement is detected by comparing the measured actual force with the new, higher force threshold.
摘要:
A barrier operator system is provided including a controller, a motor, a barrier, a power source, and a remote transmitter. The controller scans for a reduced range of radio frequencies while operating in a standby mode to conserve energy. In response to receiving a signal from the remote transmitter, the barrier operator will exit the standby mode and scan for a broader range of frequencies. In response to receiving a command signal from the remote transmitter, the controller will operate the barrier. The controller also scans for signals from an accessory device after exiting the standby mode. The accessory device may also operate in multiple modes with respect to scanning for transmissions and sending signals to the controller.
摘要:
A system is disclosed including a transmitter and receiver for the communication of security codes which may be validated at the receiver to operate equipment. In one embodiment, the transmitter transmits a security code at two frequencies contemporaneously to the receiver which may receive both frequencies and resolve the security code therefrom. The receiver may lock onto one frequency to the exclusion of the other frequency when parts of a security code are detected. In another embodiment, the transmitter selectively transmits security codes at a default frequency which is selected because of a recorded count of prior apparent successful transmission.
摘要:
A movable barrier controller 41 has a force control 44 having a corresponding setting range. As operating conditions change, the barrier controller 41 can execute a learning mode 51. During this mode, the barrier controller 41 operates the barrier movement motor 42 and measures 53 at least one parameter that corresponds to operation of the motor 42. This measured parameter is used to determine 54 a control value which control value is then assigned 55 to a specific location within the setting range of the force control 44.
摘要:
A movable barrier operator having a motor controller (10) and motor (11) that control selective movement of a movable barrier (12) also has an obstacle detector (14) that utilizes an automatically determined excess force threshold value to permit reliable detection of an obstacle under a wide variety of operational circumstances, including changing physical circumstances, aging components, temperature variations, and motor runtime. In a preferred embodiment, a characteristic force value for the system is frequently updated as a function of actual measured force requirements (and further compensated, pursuant to various embodiments, with respect to other conditions such as temperature and motor runtime). This characteristic force value is then utilized to determine the excess force threshold value.
摘要:
A movable barrier operator transmits a message to a remote peripheral platform and, upon determining that the remote peripheral platform is presently able to carry out a given functionality, responsively permits a particular function to be carried out by the movable barrier operator. Conversely, upon determining that it cannot be ascertained whether the remote peripheral platform is presently able to carry out the given functionality, the movable barrier operator responsively prevents the movable barrier operator from carrying out the particular function. Also, upon detecting that a targeted remote platform does not acknowledge a previously re-transmitted message and further upon detecting that this same remote platform has also not acknowledged a subsequent wirelessly-transmitted second message, the system can switch to automatically retransmitting that second message a lesser number of times than would otherwise be required.
摘要:
A movable barrier operator having a motor controller (10) and motor (11) that control selective movement of a movable barrier (12) also has an obstacle detector (14) that utilizes an automatically determined excess force threshold value to permit reliable detection of an obstacle under a wide variety of operational circumstances, including changing physical circumstances, aging components, temperature variations, and motor runtime. In a preferred embodiment, a characteristic force value for the system is frequently updated as a function of actual measured force requirements (and further compensated, pursuant to various embodiments, with respect to other conditions such as temperature and motor runtime). This characteristic force value is then utilized to determine the excess force threshold value.
摘要:
A control circuit initiates a relationship-establishment mode of operation and operates in both a learn mode of operation and a pairing mode of operation. When the control circuit completes one of these modes of operation (for example, the learn mode of operation, the pairing mode of operation, or either) the relationship-establishment mode of operation can switch to only using the remaining mode of operation during a remainder of the relationship-establishment mode of operation. One can also disable a previously-established relationship for each of a first category of remote platforms (such as remote platforms that became authorized through a learn mode of operation) when the user presses a button. Upon then detecting a second end-user assertion of the end-user interface, the control circuit can further disable a previously-established relationship with each of a second category of remote platforms (such as remote platforms that became authorized through a pairing mode of operation).