成立于1997年，隶属于纽约市环境保护局 美国环保署（DEP）强化地表水质量监测计划 纽约市地表水供水系统的水质测试和采样 改用专门设计的固定采样站代替内部采样站 用户水龙头、消防栓和少量固定采样站。由于要从如此大量的采样点进行采样，很难 现场人员要记住每个取样站在大样本中的确切位置 像纽约这样的大都市。从合规现场取样时，应 三个站中的一个是从三个站中收集的。 复杂而拥挤的街道可能会让现场人员感到困惑，并导致错误的结果 正在取样的上游或下游站点。为方便采样操作，并确保采样站正确 在采样过程中，可以使用一个小型便携式设备来帮助现场工作人员 以下是三个功能。首先，该设备必须具有识别功能 作用其次，该设备必须具有执行逻辑操作和 存储一定数量的信息，如日期、时间和现场测试结果。第三，这个 设备必须能够执行批处理操作，以将存储的信息传输到 个人电脑- 行动起来。这些要求使我们考虑使用。 一种手持式条形码扫描设备，具有足够的内存来存储定制的条形码 项目和获取的水质现场测试结果。然而，条形码扫描器无法识别 从供应商处收到时，立即用于水质取样，无需 进行大量额外的准备和支持工作。准备工作 支持工作包括制定和实施: 一种编程语言，用于开发定制的应用程序，以 在HHP IIIe扫描仪上运行； 用于表示样本站点索引号的条形码符号； 样本站和每日分配表的条形码标签格式； 条形码标签生成软件，标签介质材料和相应的 标签印刷设备； 数据库管理和从每日样品计划到样品的接口 条形码标签打印和样品预登记；和 专职人员执行上述任务。 尽管准备和支持工作显得琐碎乏味，但我们的 经验表明，它们可能成为瓶颈，有时会阻碍整个进程 活动 包括表格，数字。

Started in 1997 as part of New York City Department of Environmental Protection's (DEP) enhanced surface water quality monitoring program, the distribution water quality testing and sampling of New York City's surface water supply systems changed exclusively to using specially designed fixed sample stations instead of internal consumer taps, fire hydrants and a small number of fixed sample stations. With such a large amount of sample locations to sample from, it is difficult for field personnel to remember the exact location of each sample station in a large metropolis like New York City. When sampling from a compliance site, a sample should be collected from the regular station, which is the middle one in an array of three. Complicated and crowded streets may confuse field personnel and result in an incorrect station, either the upstream or the downstream, being sampled. To facilitate the sampling operation and to ensure that the correct sample stations are being sampled, a small portable device can be used to assist field staffs with the following three functions. First, this device must have an identification recognition function. Second, this device has to have the capability to perform logic operation and store a certain amount of information such as date, time and field test results. Third, this device has to be able to perform a batch operation to transfer the stored information into a personal computer for follow-up operation. These requirements lead us to consider using a handheld barcode-scanning device with enough memory for storing customized programs and captured water quality field testing results. However, the barcode scanners could not immediately be used for water quality sampling when received from the vendor without conducting a great deal of additional preparation and support work being done. The preparation and support work included developing and implementing: a programming language used to develop customized application programs to run on HHP IIIe scanners; the barcode symbology used to represent the sample site index numbers; barcode label formats for both sample stations and daily assignment sheets; barcode label generating software, label medium material and corresponding label printing equipment; database management and interfacing from daily sample schedule to sample barcode label printing and sample pre-registration; and, dedicated staff to perform the above tasks. Though the preparation and support work appear trivial and tedious, our experience showed that they could be the bottleneck which sometimes hinder the entire operation. Includes table, figures.