초록 ▼

A compact, autonomous motion detecting and alerting system alerts to the movement of objects of interest. Mounted on an environmentally sealed PC board are a transceiver such as a CW radar front-end, connectors, signal processors and a communications device. The system provides early warning of move

A compact, autonomous motion detecting and alerting system alerts to the movement of objects of interest. Mounted on an environmentally sealed PC board are a transceiver such as a CW radar front-end, connectors, signal processors and a communications device. The system provides early warning of movement of an ice sheet or rubble field via the communication device that may be a cellular telephone. This system is mounted proximate the target surface under observation, oriented at pre-specified offset angles both laterally and in elevation. The target is illuminated and energy reflected therefrom is mixed with a portion of the transmitted signal to produce a difference frequency signal that is processed to establish existence of motion within a pre-specified velocity range. Upon verification of motion, notification is sent to a responsible authority. An autonomous or semi-autonomous power source and integral power management function may be incorporated on the same PC board.

대표청구항 ▼

A compact, autonomous motion detecting and alerting system alerts to the movement of objects of interest. Mounted on an environmentally sealed PC board are a transceiver such as a CW radar front-end, connectors, signal processors and a communications device. The system provides early warning of move

A compact, autonomous motion detecting and alerting system alerts to the movement of objects of interest. Mounted on an environmentally sealed PC board are a transceiver such as a CW radar front-end, connectors, signal processors and a communications device. The system provides early warning of movement of an ice sheet or rubble field via the communication device that may be a cellular telephone. This system is mounted proximate the target surface under observation, oriented at pre-specified offset angles both laterally and in elevation. The target is illuminated and energy reflected therefrom is mixed with a portion of the transmitted signal to produce a difference frequency signal that is processed to establish existence of motion within a pre-specified velocity range. Upon verification of motion, notification is sent to a responsible authority. An autonomous or semi-autonomous power source and integral power management function may be incorporated on the same PC board. m-bit value; and (4) configuring the second data by combining the one or more outputted m-bit values. 2. A data conversion method for converting first data including one or more m-bit data into second n-bit data, where n and m (n>m) are natural numbers, comprising the steps of: (1) initializing an n-bit variable with a predetermined initial value and determining a natural number k as a number of bits of a first bit group and a natural number h as a number of bits of a least significant bit group for the second data; (2) receiving the m-bit data from the first data; (3) if the received m-bit data are equal to a predetermined m-bit value, adding the value of 2n-kto the n-bit variable and then going into step (2); (4) adding a n-bit value obtained by left-shifting the received m-bit data by h bits to the n-bit variable; and (5) setting the value of the n-bit variable as the second data. 3. The method as claimed in claim 2, further comprising the step of: (4a) adding a predetermined offset value, which is a natural number smaller than 2h,to the n-bit variable prior to step (5), wherein steps (4) and (4a) are performed irrespective of their order. 4. The method as claimed in claim 1, wherein the natural number n is 16, the natural number m is 8, the natural number k is 2, the natural number h is 6, and the first predetermined m-bit is 0xFF. 5. A method of obtaining waveform information for generating the waveform information of a square wave signal in the form of waveform information data including a series of m-bit data, where n and m (n>m) are natural numbers, comprising the steps of: (1) initializing a predetermined pre-counter variable, setting to generate an interrupt by both edges of the square wave signal and an overflow event of a predetermined n-bit free-running counter, and setting to capture the value of the n-bit counter to a predetermined register for the both edges; (2) waiting for the interrupt to occur; (3) checking a cause of the interrupt, if the interrupt is generated; (4) reflecting occurrence of the overflow event onto a predetermined overflow variable, if the interrupt is due to the overflow event of the n-bit counter; (5a) obtaining data on a pulse width corresponding to that of the square wave signal from the register, the overflow variable and the pre-counter variable, if the interrupt is due to the edges of the square wave signal; (5b) separating lower n-bit valid data and higher overflow data from the pulse width data; (5c) outputting a first predetermined m-bit value as many times as a first number if the value of the overflow data is not equal to 0, where the first number is a value obtained by multiplying the value of the overflow data by 2kfor a natural number k equal to or smaller than the value of (n-m); (5d) outputting the first predetermined m-bit value as many times as a second number if the value of a higher k-bit area in the valid data is not equal to 0, where the second number is the value of the higher k-bit area in the valid data; (5e) outputting the value of an m-bit area if the value of the m-bit data following the higher k-bit area in the valid data is not equal to the first predetermined m-bit value, and outputting a second predetermined m-bit value different from the first predetermined m-bit value if the value of the m-bit data is equal to the first predetermined m-bit value; (6) checking whether input of the square wave signal has been completed, and going into step (2) if the input of the square wave signal is not completed; and (7) combining one or more output m-bit values to configure the waveform information data. 6. A method of obtaining waveform information for generating the waveform information of a square wave signal in the form of waveform information data including a series of m-bit data, where n and m (n>m) are natural numbers, comprising the steps of: (1) setting to generate an interrupt by both edges o f the square wave signal and setting to reset and restart a predetermined n-bit free-running counter while the value of the n-bit counter is captured by a predetermined register at the both edges; (2) waiting for the interrupt to occur; (3a) reading out valid data corresponding to the value of the n-bit counter from the register; (3b) outputting a first predetermined m-bit value as many times as the value of a higher k-bit area, if the value of the higher k-bit area in the valid data is not equal to 0 for a predetermined natural number k equal to or smaller than the value of (n-m); (3c) outputting the value of an m-bit area if the value of the m-bit data following the higher k-bit area in the valid data is not equal to the first predetermined m-bit value, and outputting a second predetermined m-bit value different from the first predetermined m-bit value if the value of the m-bit data is equal to the first predetermined m-bit value; (4) checking whether input of the square wave signal has been completed, and going into step (2) if the input of the square wave signal is not completed; and (5) combining one or more output m-bit values to configure the waveform information data. 7. A method of obtaining waveform information for generating the waveform information of a square wave signal in the form of waveform information data including a series of m-bit data, where n and m (n>m) are natural numbers, comprising the steps of: (1) setting to generate an interrupt for both edges of the square signal and an overflow event of a predetermined n-bit free-running counter, and setting to reset and restart the n-bit counter while the value of the n-bit counter is captured by a predetermined register at the both edges; (2) waiting for the interrupt to occur; (3) checking a cause of the generated interrupt; (4) outputting a first predetermined m-bit value as many times as a first number if the interrupt is due to the overflow event, where the first number is the value of 2kfor a natural number k equal to or smaller than the value of (n-m); (5a) reading out valid data corresponding to the value of the n-bit counter from the register if the interrupt is due to the both edges of the square wave signal; (5b) outputting the first predetermined m-bit value as many times as the value of a higher k-bit area if the value of the higher k-bit area in the valid data is not equal to 0; (5c) outputting the value of an m-bit area if the value of the m-bit data following the higher k-bit area in the valid data is not equal to the first predetermined m-bit value, and outputting a second predetermined m-bit value different from the first predetermined m-bit value if the value of the m-bit data is equal to the first predetermined m-bit value; (6) checking whether input of the square wave signal has been completed, and going into step (2) if the input of the square wave signal is not completed; and (7) combining one or more output m-bit values to configure the waveform information data. 8. The method as claimed in claim 5, wherein the natural number n is 16, the natural number m is 8, the natural number k is 2, and the first predetermined m-bit is 0xFF. 9. A method of generating a square wave for generating a square wave signal from waveform information data including a series of m-bit data, where n and m (n>m) are natural numbers, comprising the steps of: (1) initializing a signal generating module assigned to generate the square wave; (2) calculating one or more n-bit count values from the waveform information data; (3) setting one or more predetermined control registers for controlling a pulse width of an output signal in the signal generating module by using the one or more n-bit count values; (4) activating the signal generating module; (5) checking whether the square wave signal has been completely generated, and terminating a process routine of the method if the generation of the signal is completed; (6) calculatin