A low-power consumption timing wake-up method and device
A technology for timing wake-up and wake-up devices, which is applied to record carriers used in machines, instruments, computer components, etc., and can solve problems such as difficult to meet the wake-up distance requirements and high power consumption of the system
Active Publication Date: 2018-04-27
斯凯瑞利(北京)科技有限公司
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Problems solved by technology
At this time, it is difficult to meet the demand for wake-up distance by using external wake-up technology
Although the internal wake-up technology can satisfy a longer wake-up distance, the power consumption of the system is relatively large
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[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.
[0051] At present, the wake-up technologies used in active electronic devices such as active RFID, OBU in ETC systems, and CPC are mainly divided into external wake-up technologies and internal wake-up technologies. Wherein, the external wake-up is performed by means of an external wake-up signal combined with a radio frequency detection circuit. Devices using external wake-up such as figure 1 As shown, it includes a receiving antenna 101 , a wake-up device 106 ...
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The invention discloses a method and a device for low power consumption timing wake-up. The method comprises steps that a period enable signal is generated by a timing wake-up control module and is sent to a radio frequency module; a period of the period enable signal comprises an interception time Tmonitor and a dormancy time Tsleep; during the effective work time Te moment contained in the interception time Tmonitor of the period enable signal, external wake-up signals from the external part can be received by the radio frequency module, and a symptom signal corresponding to the received external wake-up signals is further sent to the timing wake-up control module, that the symptom signal and a set threshold satisfy preset output threshold conditions is determined by the timing wake-up control module, an internal wake-up signal is outputted by the timing wake-up control module to a system control module of a waken-up device. According to the method and the device, a certain wake-up distance is guaranteed, and average system power consumption is further greatly reduced.
Description
technical field [0001] The invention relates to the field of wake-up of active electronic equipment, in particular to a method and device for timing wake-up with low power consumption. Background technique [0002] In order to save power consumption, active electronic devices such as active RFID (radio frequency identification) electronic tags, OBU (on-board unit) and CPC (composite pass cards) in ETC (electronic toll collection) systems are dormant in most cases state. When there is a need for communication, the wake-up technology is used to wake up the active electronic equipment, so that it enters the working state from the dormant state. Existing wake-up methods mainly include two types: an external wake-up method and an internal wake-up method. [0003] External wake-up includes the following process: the external wake-up device transmits an external radio frequency wake-up signal of specific specifications to the wake-up device, such as 14 continuous 14KHz square wav...
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IPC IPC(8): G06K19/07
CPCG06K19/0707G06K19/0712
Inventor 秦建军郑巍王树甫
Owner 斯凯瑞利(北京)科技有限公司