Method for measuring parameters of roadway low-position lighting fixtures

An installation method of roadway low-position lighting fixtures, comprising:

• selecting a plurality of low-position lighting fixtures determined by
• S101:
• providing a plurality of first sets of low-position lighting fixtures each set with a respective pair of preset color temperature and color rendering index, or a second set of low-position lighting fixtures configurable with multiple pairs of preset color temperature and color rendering index;
• S102:
• for each set of the plurality of first sets of low-position lighting fixtures or each pair of preset color temperature and color rendering index in the second set of low-position lighting fixtures, dynamically recognizing a target under different predetermined luminance levels at different predetermined operating speeds, including:
• S201:
• building a light environment for dynamic visual recognition on a dynamic experimental road on which a first target is placed randomly;
• S202:
• adjusting the low-position lighting fixtures to one of the predetermined luminance levels under the preset color temperature and color rendering index;
• S203:
• installing a speed detection device for a vehicle, and putting on an eye-tracker for a tested driver after the tested driver and an experimental operator getting on the vehicle;
• S204:
• the driver driving the vehicle at one of the predetermined operating speeds to visually recognize the first target, and the experimental operator, according to the visual recognition, marking a first position of the vehicle when the driver sees the first target and a second position of the vehicle passing the first target to obtain a recognition distance between the first and second positions;
• S205:
• adjusting to a further one of the luminance levels, and repeating S204 until completion of the dynamic visual recognition of the driver under the different predetermined luminance levels at the operating speed under the preset color temperature and color rendering index;
• S206:
• adjusting to the next pair of the preset color temperature and the color rendering index in the second set or changing to the next set of the first sets, and repeating S205 until completion of the dynamic visual recognition of the driver at the operating speed in different lighting environments of the lighting fixtures;
• S207:
• adjusting the vehicle to the next operating speed, repeating S204 to S206 until completion of the dynamic experiment of the driver under different predetermined luminance levels at the different predetermined operating speeds in the different lighting environments of the lighting fixtures, and changing to a next driver;
• and
• S208:
• repeating S203 to S207 until all the tested drivers completing the dynamic visual recognition to obtain dynamic visual recognition samples each sample comprising the recognition distances and the luminance levels of the lighting fixtures;
• S103:
• using the obtained samples to fit a relationship model between recognition distance and luminance;
• and
• S104:
• based on the fitted relationship model, determining at least one set of said plurality of first sets of low-position lighting fixtures or determining at least one pair of preset color temperature and color rendering index for said second set of low-position lighting fixtures;
• and
• installing the plurality of low-position lighting fixtures along both sides of a road, wherein the plurality of low-position lighting fixtures comprise the at least one determined first set of low-position lighting fixtures, or are configured with the at least one pair of determined color temperature and color rendering index.

A road, comprising a plurality of low-position lighting fixtures installed by the steps of:

• selecting a plurality of low-position lighting fixtures determined by:
• S101:
• providing a plurality of first sets of low-position lighting fixtures each set with a respective pair of preset color temperature and color rendering index, or a second set of low-position lighting fixtures configurable with multiple pairs of preset color temperature and color rendering index;
• S102:
• for each set of the plurality of first sets of low-position lighting fixtures or each pair of preset color temperature and color rendering index in the second set of low-position lighting fixtures, dynamically recognizing a target under different predetermined luminance levels at different predetermined operating speeds, including:
• S201:
• building a light environment for dynamic visual recognition on a dynamic experimental road on which a first target is placed randomly;
• S202:
• adjusting the low-position lighting fixtures to one of the predetermined luminance levels under the preset color temperature and color rendering index;
• S203:
• installing a speed detection device for a vehicle, and putting on an eye-tracker for a tested driver after the tested driver and an experimental operator getting on the vehicle;
• S204:
• the driver driving the vehicle at one of the predetermined operating speeds to visually recognize the first target, and the experimental operator, according to the visual recognition, marking a first position of the vehicle when the driver sees the first target and a second position of the vehicle passing the first target to obtain a recognition distance between the first and second positions;
• S205:
• adjusting to a further one of the luminance levels, and repeating S204 until completion of the dynamic visual recognition of the driver under the different predetermined luminance levels at the operating speed under the preset color temperature and color rendering index;
• S206:
• adjusting to the next pair of the preset color temperature and the color rendering index in the second set or changing to the next set of the first sets, and repeating S205 until completion of the dynamic visual recognition of the driver at the operating speed in different lighting environments of the lighting fixtures;
• S207:
• adjusting the vehicle to the next operating speed, repeating S204 to S206 until completion of the dynamic experiment of the driver under different predetermined luminance levels at the different predetermined operating speeds in the different lighting environments of the lighting fixtures, and changing to a next driver;
• and
• S208:
• repeating S203 to S207 until all the tested drivers completing the dynamic visual recognition to obtain dynamic visual recognition samples each sample comprising the recognition distances and the luminance levels of the lighting fixtures;
• S103:
• using the obtained samples to fit a relationship model between recognition distance and luminance;
• and
• S104:
• based on the fitted relationship model, determining at least one set of said plurality of first sets of low-position lighting fixtures or determining at least one pair of preset color temperature and color rendering index for said second set of low-position lighting fixtures;
• and
• installing the plurality of low-position lighting fixtures along both sides of a road, wherein the plurality of low-position lighting fixtures comprise the at least one determined first set of low-position lighting fixtures, or are configured with the at least one pair of determined color temperature and color rendering index.